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Theanine Serene With Relora

Source Naturals
4.6
★ ★ ★ ★ ★
(66 ratings)
Theanine 200 mg
GABA 500 mg
Magnesium 300 mg
Taurine 450 mg
Product Image
Score78
A broad, well-dosed relaxation formula with added Relora botanicals. Label ambiguity and only fifteen servings reduce its appeal.
How scoring works
Quantity:30 Tablet(s) • (15 servings)
Goals:
Stress Relief
Mood Support
Sleep Support
Brain Health
General Health
Cardiovascular Support
Energy
Cognitive Support

Score 78

A broad, well-dosed relaxation formula with added Relora botanicals. Label ambiguity and only fifteen servings reduce its appeal.
How scoring works
$7.35($0.49 per serving)
Pure Formulas
$ 7.53
Pure Formulas
$ 7.35
Vitacost
$ 7.35
Report prices

Analysis

Theanine, GABA, taurine, and 300 mg magnesium provide a substantial calming core. The amounts are large enough to distinguish the formula from lightly dosed stress blends.

Relora adds magnolia and phellodendron extracts, with holy basil as a second botanical approach. The supplied record does not clarify whether the two 150 mg Relora entries are separate amounts or descriptions of one blend.

Only fifteen servings make this package better suited to a short trial than long-term use. Multiple calming ingredients also make daytime effects less predictable.

Who is it for
  • Adults trialing a multi-ingredient calming blend
  • Evening users
  • People seeking magnesium plus theanine and GABA
Best for
  • Short-term stress-support trial
  • Pre-sleep relaxation
  • Users interested in Relora botanicals

Pros

  • Meaningful theanine, GABA, and taurine
  • Substantial magnesium amount
  • Includes magnolia, phellodendron, and holy basil
  • Coherent calming design

Cons

  • Only fifteen servings
  • Magnesium chelate is not fully identified
  • Relora dose presentation is unclear
  • Two tablets per serving

Warnings

  • The combined calming ingredients may add to alcohol, sleep medicines, or sedatives
  • Magnolia and phellodendron should be reviewed for medication compatibility
  • Magnesium may cause diarrhea
  • Avoid driving until individual drowsiness is known

Nutrient quality

87 Highest impact

A magnesium chelate and identified Relora botanicals are favorable, but exact chelation and extract markers are missing. Magnesium, GABA, L-theanine, and the Relora components have useful amounts, while taurine is moderate.

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Ingredient transparency

77 High impact

Every listed active ingredient has a stated amount. The supplied data does not include a complete inactive ingredient list.

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Customer satisfaction

64 Moderate impact

The aggregate satisfaction measure is favorable, but the review volume is limited. Missing firsthand feedback leaves repeat complaints and real-world purpose fit uncertain.

.

Value for money

79 High impact

The useful active amounts reasonably support the product cost despite generic sourcing. Each serving offers good value across several complementary calming ingredients.

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Report analysis

Goals

Stress Relief
Stress Relief
Impact
Highest effect
A+ Goal FitA Strength of SupportA+ CoverageA+ Formula Quality
Magnesium · 300 mgGABA · 500 mgTheanine · 200 mg

L-theanine, GABA, magnesium, taurine, Relora, and holy basil cover several complementary stress pathways. The main calming actives are supplied at meaningful amounts, making the formula suitable for substantial relaxation support.

The generic magnesium chelate lacks a named ligand, but dose disclosure is otherwise strong. Additive calming effects may cause drowsiness in sensitive users, especially when combined with sedatives.

Study evidence
GABA Supportive 6 studies
Magnesium Supportive 13 studies
Taurine Supportive 5 studies
Theanine Supportive 16 studies
Mood Support
Mood Support
Impact
Highest effect
B+ Goal FitA- Strength of SupportA CoverageA Formula Quality
Magnesium · 300 mg

Theanine, GABA, magnesium, taurine, Relora, and holy basil provide a well-focused blend for stress and calm mood support. Evidence is strongest for theanine and magnesium, while oral GABA and the botanical blend have more limited support.

All lead amounts are substantial and the branded Relora blend improves ingredient definition. GABA, theanine, magnesium, and calming botanicals may have additive effects and cause drowsiness in sensitive users.

Study evidence
GABA Supportive 12 studies
Magnesium Supportive 60 studies
Theanine Supportive 12 studies
Sleep Support
Sleep Support
Impact
Highest effect
B+ Goal FitA- Strength of SupportA- CoverageA Formula Quality
Magnesium · 300 mgTheanine · 200 mg

L-theanine, GABA, taurine, magnesium, Relora, and holy basil cover nervous-system relaxation, mineral support, and stress resilience. The main actives have substantial disclosed amounts.

The exact magnesium chelate and GABA source are not identified, which limits form confidence. Additive calming effects may cause drowsiness in sensitive users, so the formula is best reserved for times when reduced alertness is acceptable.

Study evidence
GABA Supportive 4 studies
Magnesium Supportive 23 studies
Taurine Not classified

No linked studies yet.

Theanine Supportive 8 studies
Brain Health
Brain Health
Impact
Highest effect
B+ Goal FitB+ Strength of SupportA- CoverageA- Formula Quality
Magnesium · 300 mg

L-theanine, magnesium, GABA, taurine, and Relora provide focused support for calm attention and stress resilience. Theanine and magnesium reach meaningful amounts, and the main actives are separately quantified.

The exact magnesium chelate is not identified, and the formula does not target memory or structural brain health. Combined GABA, theanine, Relora, and holy basil may cause drowsiness in sensitive users.

Study evidence
Magnesium Supportive 86 studies
Theanine Supportive 17 studies
General Health
Stress Resilience
General Health
Impact
High effect
B Goal FitB Strength of SupportB CoverageA- Formula Quality
Magnesium · 300 mgTaurine · 450 mg

Magnesium and theanine provide a sensible foundation for relaxation and stress resilience. Taurine, GABA, holy basil, and Relora add complementary calming pathways.

The magnesium and theanine amounts are useful, though taurine is modest and the magnesium chelate is not fully identified. The blend is best viewed as targeted stress support rather than complete general nutrition.

Study evidence
Magnesium Supportive 114 studies
Taurine No effect 3 studies
Cardiovascular Support
Cardiovascular Support
Impact
High effect
B Goal FitB- Strength of SupportB- CoverageA- Formula Quality
Magnesium · 300 mgTaurine · 450 mg

Magnesium and taurine provide useful support for vascular tone and cardiac electrical stability. Theanine, GABA, and calming botanicals may indirectly help by reducing stress-related tension.

Taurine is below common targeted cardiovascular amounts and the magnesium chelate is not identified precisely. The formula remains coherent as a calming mineral blend but is not a complete lipid or endothelial product.

Study evidence
Magnesium Supportive 123 studies
Taurine Supportive 24 studies

Ingredients

IngredientAmount per serving
Calories
5 Calorie(s)
Total Carbohydrates
1 Gram(s)
Magnesium (Magnesium Chelate)
 300 mg
GABA
500 mg
Taurine
450 mg
L-Theanine
200 mg
Relora (Magnolia officinalis, Phellodendron amurense)
 150 mg
Holy Basil leaf extract
100 mg
Adults 18–50
Report overview
Theanine · 200 mg OverallScore88
B+ Active Ingredient Quality & BioavailabilityA+ Dose, Safety & Label TransparencyB+ Value

A clearly disclosed 200 mg L-theanine dose sits in the preferred range for focused use. The generic ingredient lacks branded sourcing or purity evidence, while competitive cost efficiency supports regular use. GABA, Relora, and theanine may have additive calming effects, so the combination may cause drowsiness in sensitive users.

View ingredientView products
GABA · 500 mg OverallScore68
C+ Active Ingredient Quality & BioavailabilityA- Dose, Safety & Label TransparencyD- Value

The GABA dose falls within the preferred effective range and is clearly disclosed. Unbranded GABA and hard-pressed tablet delivery are less distinctive than fermented GABA in a faster-delivery format. The serving cost is high for a standard source, while the broad calming formula may still appeal to users seeking multiple actives.

View ingredientView products
Magnesium (Magnesium Chelate) · 300 mg OverallScore61
D- Active Ingredient Quality & BioavailabilityA- Dose, Safety & Label TransparencyD+ Value
+4

A generic magnesium chelate may absorb better than oxide, but its exact chelate type is not disclosed. 300 mg of elemental magnesium is clearly disclosed and falls in the standard supplemental range; no vitamin B6, boron, or vitamin D cofactor is supplied to strengthen the magnesium rationale. Value is fair, with an effective amount but no premium or patented form to justify the cost.

View ingredientView products
Loading alternative details
83 Performance

ZenMind

NutriCology
The concise combination provides slightly more GABA and the same theanine amount, with theanine identified as Suntheanine. Magnesium, taurine, and holy basil are omitted, so it is a focused GABA-theanine option rather than broad mineral support.
78 Performance

Serenelle

Quality Of Life
The same theanine amount is paired with explicitly named PharmaGABA and strong stress and mood alignment. GABA is lower and magnesium and taurine are absent, but the focused formula may better suit stress support than the original broad blend.
83 Performance

GABA Soothe

Jarrow Formulas
The formula combines GABA and theanine with Sensoril and has strong stress-support alignment. Both overlapping amino acids are lower than in the original and magnesium and taurine are absent, so its advantage is targeted stress support rather than dose matching.
74 Budget

Chewable GABA

NOW
The lower serving cost keeps the original GABA amount and adds small amounts of taurine, inositol, and theanine in a chewable format. Theanine and taurine are much lower, while magnesium, holy basil and Relora are omitted.
77 Budget

NightRest with Melatonin

Source Naturals
The lower serving cost retains the original magnesium and GABA amounts, supplies substantial taurine, and adds glycine plus several calming herbs. Theanine and Relora are omitted, while the melatonin amount shifts the formula toward nighttime use and may be more than some users want.
82 Budget

Theanine Serene

Source Naturals Serene Science
The lower serving cost retains the same magnesium, GABA, taurine, theanine, and holy basil amounts. Relora is omitted, so the saving suits someone who wants the core calming blend without that added botanical.
79 Value

Relax Magnesium Powder Berry

youtheory
Magnesium citrate is clearly identified and paired with GABA and theanine in a simpler powder. The supplied serving cost is not lower, while GABA and theanine are reduced and taurine is omitted, so value depends on preferring the streamlined formula.
75 Value

Ultra Strength Goodbye Stress

OLLY
GABA and theanine are paired with ashwagandha and lemon balm in a concise stress-focused blend. The supplied serving cost is not lower and the overlapping amounts are reduced, but the narrower purpose may offer better value for users prioritizing stress relief.
74 Value

NightRest With Melatonin

Source Naturals
The lower serving cost combines the original magnesium and GABA amounts with taurine, glycine, herbs, and melatonin for broader sleep support. Theanine is omitted, and the melatonin amount may be unnecessarily high for users who only want daytime calm.
Report alternatives

Sources

Published studies used for the product analysis and the top-ranked studies for each ingredient and goal.

  1. Role of magnesium supplementation in the treatment of depression: A randomized clinical trial.
    Tarleton EK; Littenberg B; MacLean CD; Kennedy AG; Daley C · PloS one · 2017
    Randomized trial126 participantsStress Relief Mood Support forMagnesium
  2. Examining the Effects of Supplemental Magnesium on Self-Reported Anxiety and Sleep Quality: A Systematic Review.
    Rawji A; Peltier MR; Mourtzanakis K; Awan S; Rana J; Pothen NJ; Afzal S · Cureus · 2024
    Systematic review15 studies pooledStress Relief forMagnesium
  3. GABA Supplementation, Increased Heart-Rate Variability, Emotional Response, Sleep Efficiency and Reduced Depression in Sedentary Overweight Women Undergoing Physical Exercise: Placebo-Controlled, Randomized Clinical Trial.
    Guimarães AP; Seidel H; Pires LVM; Trindade CO; Baleeiro RDS; Souza PM; Silva FGDE; Coelho DB; Becker LK; Oliveira EC · Journal of dietary supplements · 2024
    Randomized trial30 participantsStress Relief Sleep Support forGABA
  4. Oral intake of γ-aminobutyric acid affects mood and activities of central nervous system during stressed condition induced by mental tasks.
    Yoto A; Murao S; Motoki M; Yokoyama Y; Horie N; Takeshima K; Masuda K; Kim M; Yokogoshi H · Amino acids · 2012
    Randomized trial63 participantsStress Relief Mood Support forGABA
  5. Effects of L-Theanine Administration on Stress-Related Symptoms and Cognitive Functions in Healthy Adults: A Randomized Controlled Trial.
    Hidese S; Ogawa S; Ota M; Ishida I; Yasukawa Z; Ozeki M; Kunugi H · Nutrients · 2020
    Randomized trial30 participantsStress Relief Brain Health Cognitive Support Sleep Support forTheanine
  6. L-theanine in the adjunctive treatment of generalized anxiety disorder: A double-blind, randomised, placebo-controlled trial.
    Sarris J; Byrne GJ; Cribb L; Oliver G; Murphy J; Macdonald P; Nazareth S; Karamacoska D; Galea S; Short A; Ee C; Birling Y; Menon R; Ng CH · Journal of psychiatric research · 2020
    Randomized trial46 participantsStress Relief Sleep Support forTheanine
  7. Correlations between dietary taurine intake and life stress in Korean college students.
    Sung MJ; Chang KJ · Advances in experimental medicine and biology · 2009
    Observational studyStress Relief forTaurine
  8. Profiling inflammatory and oxidative stress biomarkers following taurine supplementation: a systematic review and dose-response meta-analysis of controlled trials.
    Faghfouri AH; Seyyed Shoura SM; Fathollahi P; Shadbad MA; Papi S; Ostadrahimi A; Faghfuri E · European journal of clinical nutrition · 2022
    Meta-analysisStress Relief forTaurine
  9. Antenatal magnesium sulfate and neuroprotection.
    Doyle LW · Current opinion in pediatrics · 2012
    Meta-analysis6,145 participants5 studies pooledBrain Health forMagnesium
  10. No. 376-Magnesium Sulphate for Fetal Neuroprotection.
    Magee LA; De Silva DA; Sawchuck D; Synnes A; von Dadelszen P · Journal of obstetrics and gynaecology Canada : JOGC = Journal d'obstetrique et gynecologie du Canada : JOGC · 2020
    Guideline / consensus4,446 participantsBrain Health forMagnesium
  11. Magnesium Sulfate Before Preterm Birth for Neuroprotection: An Updated Cochrane Systematic Review.
    Shepherd ES; Goldsmith S; Doyle LW; Middleton P; Marret S; Rouse DJ; Pryde P; Wolf HT; Crowther CA · Obstetrics and gynecology · 2024
    Systematic review5,917 participants6 studies pooledBrain Health forMagnesium
  12. Magnesium sulphate for fetal neuroprotection at imminent risk for preterm delivery: a systematic review with meta-analysis and trial sequential analysis.
    Wolf HT; Huusom LD; Henriksen TB; Hegaard HK; Brok J; Pinborg A · BJOG : an international journal of obstetrics and gynaecology · 2020
    Meta-analysis5,917 participants6 studies pooledBrain Health forMagnesium
  13. Magnesium sulfate and fetal neuroprotection: overview of clinical evidence.
    Chollat C; Marret S · Neural regeneration research · 2020
    Narrative reviewBrain Health forMagnesium
  14. A Randomized, Triple-Blind, Placebo-Controlled, Crossover Study to Investigate the Efficacy of a Single Dose of AlphaWave® L-Theanine on Stress in a Healthy Adult Population.
    Evans M; McDonald AC; Xiong L; Crowley DC; Guthrie N · Neurology and therapy · 2021
    Randomized trialBrain Health Stress Relief forTheanine
  15. Effects of Tea (Camellia sinensis) or its Bioactive Compounds l-Theanine or l-Theanine plus Caffeine on Cognition, Sleep, and Mood in Healthy Participants: A Systematic Review and Meta-Analysis of Randomized Controlled Trials.
    Payne ER; Aceves-Martins M; Dubost J; Greyling A; de Roos B · Nutrition reviews · 2025
    Meta-analysis50 studies pooledBrain Health Cognitive Support Mental Focus forTheanine
  16. Assessing the effects of caffeine and theanine on the maintenance of vigilance during a sustained attention task.
    Foxe JJ; Morie KP; Laud PJ; Rowson MJ; de Bruin EA; Kelly SP · Neuropharmacology · 2012
    Randomized trial27 participantsBrain Health Cognitive Support forTheanine
  17. Effects of l-Theanine on Cognitive Function in Middle-Aged and Older Subjects: A Randomized Placebo-Controlled Study.
    Baba Y; Inagaki S; Nakagawa S; Kaneko T; Kobayashi M; Takihara T · Journal of medicinal food · 2021
    Randomized trialBrain Health Mental Focus Productivity Boost forTheanine
  18. Circulating and dietary magnesium and risk of cardiovascular disease: a systematic review and meta-analysis of prospective studies.
    Del Gobbo LC; Imamura F; Wu JH; de Oliveira Otto MC; Chiuve SE; Mozaffarian D · The American journal of clinical nutrition · 2013
    Meta-analysis313,041 participants16 studies pooledCardiovascular Support forMagnesium
  19. Magnesium and the risk of cardiovascular events: a meta-analysis of prospective cohort studies.
    Qu X; Jin F; Hao Y; Li H; Tang T; Wang H; Yan W; Dai K · PloS one · 2013
    Meta-analysis532,979 participants19 studies pooledCardiovascular Support forMagnesium
  20. Quantitative Association Between Serum/Dietary Magnesium and Cardiovascular Disease/Coronary Heart Disease Risk: A Dose-Response Meta-analysis of Prospective Cohort Studies.
    Zhao L; Hu M; Yang L; Xu H; Song W; Qian Y; Zhao M · Journal of cardiovascular pharmacology · 2020
    Meta-analysis544,581 participants18 studies pooledCardiovascular Support Heart Health forMagnesium
  21. Comparative Efficacy of Nutraceuticals on Endothelial Function: A Systematic Review and Network Meta-Analysis.
    Norouzzadeh M; Rashedi MH; Mahdavi-Mazdeh G; Kosari A; Shahinfar H · Current atherosclerosis reports · 2026
    Meta-analysisCardiovascular Support Heart Health forMagnesium
  22. Serum magnesium, mortality, and cardiovascular disease in chronic kidney disease and end-stage renal disease patients: a systematic review and meta-analysis.
    Xiong J; He T; Wang M; Nie L; Zhang Y; Wang Y; Huang Y; Feng B; Zhang J; Zhao J · Journal of nephrology · 2020
    Meta-analysis200,934 participants20 studies pooledCardiovascular Support forMagnesium
  23. Taurine Supplementation Lowers Blood Pressure and Improves Vascular Function in Prehypertension: Randomized, Double-Blind, Placebo-Controlled Study.
    Sun Q; Wang B; Li Y; Sun F; Li P; Xia W; Zhou X; Li Q; Wang X; Chen J; Zeng X; Zhao Z; He H; Liu D; Zhu Z · Hypertension (Dallas, Tex. : 1979) · 2016
    Randomized trial120 participantsCardiovascular Support Heart Health forTaurine
  24. Taurine ameliorates blood pressure and vascular function in patients with type 2 diabetes: Randomized, double-blind, placebo-controlled trial.
    Li Y; Wang Q; Liu Y; Li Q; Xia W; Lin S; Yang Q; Scholze A; Zhao Z; He H; Zhang H; Yan Z; Tepel M; Mu H; Zhu Z; Liu D · iScience · 2025
    Randomized trial165 participantsCardiovascular Support Heart Health forTaurine
  25. Taurine reduces the risk for metabolic syndrome: a systematic review and meta-analysis of randomized controlled trials.
    Tzang CC; Chi LY; Lin LH; Lin TY; Chang KV; Wu WT; Özçakar L · Nutrition & diabetes · 2024
    Meta-analysis1,024 participants25 studies pooledCardiovascular Support forTaurine
  26. Effects of Oral Taurine Supplementation on Cardiometabolic Risk Factors: A Meta-analysis and Systematic Review of Randomized Clinical Trials.
    Nie Z; Liu Y; Zhang M; Wu C; Cao Q; Xu J; Zheng Y; Min Z; Zhang W; Han S · Nutrition reviews · 2025
    Meta-analysis34 studies pooledCardiovascular Support General Health forTaurine
  27. The effects of taurine supplementation on glycemic control and serum lipid profile in patients with type 2 diabetes: a randomized, double-blind, placebo-controlled trial.
    Maleki V; Alizadeh M; Esmaeili F; Mahdavi R · Amino acids · 2021
    Randomized trial45 participantsCardiovascular Support forTaurine
  28. Magnesium sulphate for women at risk of preterm birth for neuroprotection of the fetus.
    Doyle LW; Crowther CA; Middleton P; Marret S; Rouse D · The Cochrane database of systematic reviews · 2009
    Meta-analysis6,145 participants5 studies pooledCognitive Support forMagnesium
  29. Effects of magnesium valproate adjuvant therapy on patients with dementia: A systematic review and meta-analysis.
    Zhang C; Sun L; Sun H · Medicine · 2022
    Meta-analysis1,899 participants22 studies pooledCognitive Support forMagnesium
  30. Effects of magnesium supplementation on serum brain-derived neurotrophic factor levels and cognitive function in patients undergoing fluoxetine therapy for depression.
    Noor NJ; Syamsuddin S; Liaury K; Tawali S; Idris I; Azis I; Lisal ST · East Asian archives of psychiatry : official journal of the Hong Kong College of Psychiatrists = Dong Ya jing shen ke xue zhi : Xianggang jing shen ke yi xue yuan qi kan · 2026
    Randomized trial40 participantsCognitive Support forMagnesium
  31. Magnesium-L-threonate improves sleep quality and daytime functioning in adults with self-reported sleep problems: A randomized controlled trial.
    Hausenblas HA; Lynch T; Hooper S; Shrestha A; Rosendale D; Gu J · Sleep medicine: X · 2025
    Randomized trial80 participantsCognitive Support Energy forMagnesium
  32. Could intraoperative magnesium sulphate protect against postoperative cognitive dysfunction?
    Hassan WF; Tawfik MH; Nabil TM; Abd Elkareem RM · Minerva anestesiologica · 2021
    Randomized trial80 participantsCognitive Support forMagnesium
  33. Dose-response effect of L-theanine on psychomotor speed, sustained attention, and inhibitory control: a double-blind, placebo-controlled, crossover study.
    Dassanayake TL; Wijesundara D; Kahathuduwa CN; Weerasinghe VS · Nutritional neuroscience · 2023
    Randomized trial32 participantsCognitive Support forTheanine
  34. Acute effects of theanine, caffeine and theanine-caffeine combination on attention.
    Kahathuduwa CN; Dassanayake TL; Amarakoon AMT; Weerasinghe VS · Nutritional neuroscience · 2018
    Clinical trial20 participantsCognitive Support Mental Focus forTheanine
  35. Total magnesium intake and risk of frailty in older women.
    Struijk EA; Fung TT; Bischoff-Ferrari HA; Willett WC; Lopez-Garcia E · Journal of cachexia, sarcopenia and muscle · 2024
    Cohort study81,524 participantsEnergy forMagnesium
  36. Red blood cell magnesium and chronic fatigue syndrome.
    Cox IM; Campbell MJ; Dowson D · Lancet (London, England) · 1991
    Randomized trial32 participantsEnergy forMagnesium
  37. Exercise, magnesium and immune function.
    Laires MJ; Monteiro C · Magnesium research · 2008
    Narrative reviewEnergy forMagnesium
  38. Perioperative systemic magnesium to minimize postoperative pain: a meta-analysis of randomized controlled trials.
    De Oliveira GS; Castro-Alves LJ; Khan JH; McCarthy RJ · Anesthesiology · 2013
    Meta-analysis1,257 participants20 studies pooledGeneral Health forMagnesium
  39. Long-term outcome after intravenous magnesium sulphate in suspected acute myocardial infarction: the second Leicester Intravenous Magnesium Intervention Trial (LIMIT-2).
    Woods KL; Fletcher S · Lancet (London, England) · 1994
    Randomized trial2,316 participantsGeneral Health forMagnesium
  40. Association of magnesium sulfate use with mortality in critically ill patients with sepsis: a retrospective propensity score-matched cohort study.
    Gu WJ; Duan XJ; Liu XZ; Cen Y; Tao LY; Lyu J; Yin HY · British journal of anaesthesia · 2023
    Cohort study10,999 participantsGeneral Health forMagnesium
  41. Hypomagnesemia and Mortality in Incident Hemodialysis Patients.
    Li L; Streja E; Rhee CM; Mehrotra R; Soohoo M; Brunelli SM; Kovesdy CP; Kalantar-Zadeh K · American journal of kidney diseases : the official journal of the National Kidney Foundation · 2016
    Cohort study9,359 participantsGeneral Health forMagnesium
  42. The effects of magnesium supplementation on abnormal uterine bleeding, alopecia, quality of life, and acne in women with polycystic ovary syndrome: a randomized clinical trial.
    Jaripur M; Ghasemi-Tehrani H; Askari G; Gholizadeh-Moghaddam M; Clark CCT; Rouhani MH · Reproductive biology and endocrinology : RB&E · 2022
    Randomized trial64 participantsGeneral Health forMagnesium
  43. Cognitive Effects of Taurine and Related Sulphur-Containing Amino Acids: A Systematic Review of Human Trials and Considerations for Plant-Based Dietary Transitions.
    Moore JA; Cousins AL; Taylor RMJ; Griffiths AR; Young HA · Foods (Basel, Switzerland) · 2026
    Systematic review244 participants8 studies pooledGeneral Health forTaurine
  44. Association between habitual dietary taurine intake and the risk of metabolic dysfunction-associated steatotic liver disease: a prospective cohort study.
    Zhang S; Xu X; Wang D; Gu Y; Wu H; Meng G; Zhang Q; Liu L; Borné Y; Niu K; Bai L · Food & function · 2026
    Cohort study16,699 participantsGeneral Health forTaurine
  45. Effects of magnesium supplementation on improving hyperglycemia, hypercholesterolemia, and hypertension in type 2 diabetes: A pooled analysis of 24 randomized controlled trials.
    Xu L; Li X; Wang X; Xu M · Frontiers in nutrition · 2023
    Meta-analysis1,325 participants24 studies pooledHeart Health forMagnesium
  46. The effect of lowering blood pressure by magnesium supplementation in diabetic hypertensive adults with low serum magnesium levels: a randomized, double-blind, placebo-controlled clinical trial.
    Guerrero-Romero F; Rodríguez-Morán M · Journal of human hypertension · 2009
    Randomized trial82 participantsHeart Health forMagnesium
  47. Positive effects of magnesium supplementation in metabolic syndrome.
    Kisters S; Kisters K; Werner T; Vormann J; Tokmak F; Westhoff T; Gröber U; Predel HG; Reuter H · International journal of clinical pharmacology and therapeutics · 2024
    Randomized trial54 participantsHeart Health forMagnesium
  48. Seafood diets: hypolipidemic and antiatherogenic effects of taurine and n-3 fatty acids.
    Elvevoll EO; Eilertsen KE; Brox J; Dragnes BT; Falkenberg P; Olsen JO; Kirkhus B; Lamglait A; Østerud B · Atherosclerosis · 2009
    Randomized trial80 participantsHeart Health forTaurine
  49. The effects of taurine supplementation on obesity, blood pressure and lipid profile: A meta-analysis of randomized controlled trials.
    Guan L; Miao P · European journal of pharmacology · 2021
    Meta-analysis12 studies pooledHeart Health forTaurine
  50. The Effects of Oral Taurine on Resting Blood Pressure in Humans: a Meta-Analysis.
    Waldron M; Patterson SD; Tallent J; Jeffries O · Current hypertension reports · 2019
    Meta-analysis103 participants7 studies pooledHeart Health forTaurine
  51. Relationship between Whole-Blood Magnesium and Cognitive Performance among Chinese Adults.
    Lu Z; He R; Zhang Y; Li B; Li F; Fu Y; Rong S · Nutrients · 2023
    Cross-sectional study1,006 participantsMental Focus forMagnesium
  52. Serum Magnesium and Cognitive Function Among Qatari Adults.
    Al-Ghazali K; Eltayeb S; Musleh A; Al-Abdi T; Ganji V; Shi Z · Frontiers in aging neuroscience · 2020
    Cross-sectional study1,000 participantsMental Focus forMagnesium
  53. Magnesium status and attention deficit hyperactivity disorder (ADHD): A meta-analysis.
    Effatpanah M; Rezaei M; Effatpanah H; Effatpanah Z; Varkaneh HK; Mousavi SM; Fatahi S; Rinaldi G; Hashemi R · Psychiatry research · 2019
    Meta-analysisMental Focus forMagnesium
  54. The effect of vitamin D and magnesium supplementation on the mental health status of attention-deficit hyperactive children: a randomized controlled trial.
    Hemamy M; Pahlavani N; Amanollahi A; Islam SMS; McVicar J; Askari G; Malekahmadi M · BMC pediatrics · 2021
    Randomized trial33 participantsMental Focus forMagnesium
  55. The effects of magnesium L-threonate (Magtein®) on cognitive performance and sleep quality in adults: a randomised, double-blind, placebo-controlled trial.
    Lopresti AL; Smith SJ · Frontiers in nutrition · 2026
    Randomized trial100 participantsMental Focus Productivity Boost forMagnesium
  56. Safety and Efficacy of AlphaWave® L-Theanine Supplementation for 28 Days in Healthy Adults with Moderate Stress: A Randomized, Double-Blind, Placebo-Controlled Trial.
    Moulin M; Crowley DC; Xiong L; Guthrie N; Lewis ED · Neurology and therapy · 2024
    Randomized trial30 participantsMental Focus Productivity Boost Stress Relief forTheanine
  57. Effect of L-theanine on selective attention in a traffic-related reaction task in sleep-deprived young adults: a double-blind placebo-controlled, crossover study.
    Karunaratne UW; Dassanayake TL · Nutritional neuroscience · 2025
    Randomized trial24 participantsMental Focus forTheanine
  58. Peripartum neuroactive steroid and γ-aminobutyric acid profiles in women at-risk for postpartum depression.
    Deligiannidis KM; Kroll-Desrosiers AR; Mo S; Nguyen HP; Svenson A; Jaitly N; Hall JE; Barton BA; Rothschild AJ; Shaffer SA · Psychoneuroendocrinology · 2017
    Cohort study56 participantsMood Support forGABA
  59. The role of neurotransmitters in mediating the relationship between brain alterations and depressive symptoms in patients with inflammatory bowel disease.
    Wang J; Liu G; Xu K; Ai K; Huang W; Zhang J · Human brain mapping · 2023
    Case-control study69 participantsMood Support forGABA
  60. Occipital gamma-aminobutyric acid and glutamate-glutamine alterations in major depressive disorder: An mrs study and meta-analysis.
    Truong V; Cheng PZ; Lee HC; Lane TJ; Hsu TY; Duncan NW · Psychiatry research. Neuroimaging · 2021
    Observational studyMood Support forGABA
  61. Systematic review of gamma-aminobutyric-acid inhibitory deficits across the reproductive life cycle.
    Vigod SN; Strasburg K; Daskalakis ZJ; Blumberger DM · Archives of women's mental health · 2014
    Systematic review11 studies pooledMood Support forGABA
  62. Protective role of antioxidant supplementation for depression and anxiety: A meta-analysis of randomized clinical trials.
    Wang H; Jin M; Xie M; Yang Y; Xue F; Li W; Zhang M; Li Z; Li X; Jia N; Liu Y; Cui X; Hu G; Dong L; Wang G; Yu Q · Journal of affective disorders · 2023
    Meta-analysis4,049 participants52 studies pooledMood Support forMagnesium
  63. Magnesium supplementation as an adjunct to fluoxetine therapy for depression.
    Walyddaini AS; Lisal ST; Ilhamuddin; Zainuddin AA; Tanra AJ; Widianingsih Y; Syamsuddin S · East Asian archives of psychiatry : official journal of the Hong Kong College of Psychiatrists = Dong Ya jing shen ke xue zhi : Xianggang jing shen ke yi xue yuan qi kan · 2026
    Randomized trial40 participantsMood Support forMagnesium
  64. The effects of magnesium supplementation on serum level of brain derived neurotrophic factor (BDNF) and depression status in patients with depression.
    Afsharfar M; Shahraki M; Shakiba M; Asbaghi O; Dashipour A · Clinical nutrition ESPEN · 2021
    Randomized trial46 participantsMood Support forMagnesium
  65. Dietary magnesium intake and risk of depression.
    Sun C; Wang R; Li Z; Zhang D · Journal of affective disorders · 2019
    Cross-sectional study17,730 participantsMood Support forMagnesium
  66. l-theanine adjunct to sertraline for major depressive disorder: A randomized, double-blind, placebo-controlled clinical trial.
    Shamabadi A; Kafi F; Arab Bafrani M; Asadigandomani H; A Basti F; Akhondzadeh S · Journal of affective disorders · 2023
    Randomized trial60 participantsMood Support forTheanine
  67. L-theanine relieves positive, activation, and anxiety symptoms in patients with schizophrenia and schizoaffective disorder: an 8-week, randomized, double-blind, placebo-controlled, 2-center study.
    Ritsner MS; Miodownik C; Ratner Y; Shleifer T; Mar M; Pintov L; Lerner V · The Journal of clinical psychiatry · 2011
    Randomized trial60 participantsMood Support Stress Relief forTheanine
  68. The Effects of Green Tea Amino Acid L-Theanine Consumption on the Ability to Manage Stress and Anxiety Levels: a Systematic Review.
    Williams JL; Everett JM; D'Cunha NM; Sergi D; Georgousopoulou EN; Keegan RJ; McKune AJ; Mellor DD; Anstice N; Naumovski N · Plant foods for human nutrition (Dordrecht, Netherlands) · 2020
    Systematic review9 studies pooledMood Support forTheanine
  69. Comparison of the effects of two amino acids, Gamma-aminobutyric acid (GABA) and L-theanine, on sedation, anxiety, and cognition in preoperative surgical patients - A randomized controlled study.
    Deshpande SS; Kurdi M; Baiju A; Athira AS; Sarasamma AG; Gangadharan AK · Journal of anaesthesiology, clinical pharmacology · 2025
    Randomized trial168 participantsMood Support Stress Relief forTheanine Stress Relief forGABA
  70. Anti-stress effect of theanine on students during pharmacy practice: positive correlation among salivary α-amylase activity, trait anxiety and subjective stress.
    Unno K; Tanida N; Ishii N; Yamamoto H; Iguchi K; Hoshino M; Takeda A; Ozawa H; Ohkubo T; Juneja LR; Yamada H · Pharmacology, biochemistry, and behavior · 2014
    Randomized trial20 participantsMood Support forTheanine
  71. Cross-sectional and longitudinal associations of magnesium intake and cognition in the Healthy Aging Longitudinal Study in Taiwan.
    Tao MH; Chuang SC; Wu IC; Chan HT; Cheng CW; Chen HL; Lee MM; Chang HY; Hsiung CA; Hsu CC · European journal of nutrition · 2024
    Cohort study5,663 participantsProductivity Boost forMagnesium
  72. Low levels of serum magnesium are associated with poststroke cognitive impairment in ischemic stroke patients.
    Tu X; Qiu H; Lin S; He W; Huang G; Zhang X; Wu Y; He J · Neuropsychiatric disease and treatment · 2022
    Cohort study327 participantsProductivity Boost forMagnesium
  73. Hypomagnesemia and Acute Cognitive Decline in Older Adults: An Evaluation of Clinical Practice and Cognitive Outcomes at a National Health Service (NHS) Trust in England.
    Lai XN; Sadhwani V; Ng WM; Gani A · Cureus · 2025
    Cohort study667 participantsProductivity Boost forMagnesium
  74. Magnesium Depletion Score as a Novel Predictor of Cognitive Impairment: A Population-Based Cross-Sectional Study From NHANES.
    Chen M; Xue R; Zhang M; Zhang J; Zheng J; Ye D; Sun J · Journal of the American Medical Directors Association · 2025
    Cross-sectional study2,768 participantsProductivity Boost forMagnesium
  75. Cognitive and affective effects of L-Theanine: a systematic review and meta-analysis of 31 randomized trials.
    Gerolymos C; Saddier E; Boyer L; Fond G · Molecular psychiatry · 2026
    Meta-analysis1,168 participants31 studies pooledProductivity Boost forTheanine
  76. Effects of L-theanine on cognition, mood and sleep: evidence from human trials.
    Cotter J; Kilpatrick HE · Frontiers in nutrition · 2026
    Narrative reviewProductivity Boost forTheanine
  77. Time for tea: mood, blood pressure and cognitive performance effects of caffeine and theanine administered alone and together.
    Rogers PJ; Smith JE; Heatherley SV; Pleydell-Pearce CW · Psychopharmacology · 2008
    Randomized trial48 participantsProductivity Boost forTheanine
  78. Safety and Efficacy of Gamma-Aminobutyric Acid from Fermented Rice Germ in Patients with Insomnia Symptoms: A Randomized, Double-Blind Trial.
    Byun JI; Shin YY; Chung SE; Shin WC · Journal of clinical neurology (Seoul, Korea) · 2020
    Randomized trial40 participantsSleep Support forGABA
  79. Analysis of the Effects of Known Sleep-Support Supplements in Relation to Life Habits, Sleep Conditions, and Sleep Problems.
    Imafuku F; Yamamoto K; Tanaka E; Aoki R; Nishino S · Nutrients · 2023
    Randomized trial160 participantsSleep Support forGABA
  80. Reduced γ-aminobutyric acid in occipital and anterior cingulate cortices in primary insomnia: a link to major depressive disorder?
    Plante DT; Jensen JE; Schoerning L; Winkelman JW · Neuropsychopharmacology : official publication of the American College of Neuropsychopharmacology · 2012
    Case-control study40 participantsSleep Support forGABA
  81. Effects of magnesium and potassium supplementation on insomnia and sleep hormones in patients with diabetes mellitus.
    Khalid S; Bashir S; Mehboob R; Anwar T; Ali M; Hashim M; Waseem H; Basharat S · Frontiers in endocrinology · 2024
    Randomized trial320 participantsSleep Support forMagnesium
  82. Association of magnesium intake with sleep duration and sleep quality: findings from the CARDIA study.
    Zhang Y; Chen C; Lu L; Knutson KL; Carnethon MR; Fly AD; Luo J; Haas DM; Shikany JM; Kahe K · Sleep · 2022
    Cohort study3,964 participantsSleep Support forMagnesium
  83. Lidocaine vs. magnesium: effect on analgesia after a laparoscopic cholecystectomy.
    Saadawy IM; Kaki AM; Abd El Latif AA; Abd-Elmaksoud AM; Tolba OM · Acta anaesthesiologica Scandinavica · 2010
    Randomized trial120 participantsSleep Support forMagnesium
  84. The effect of magnesium supplementation on primary insomnia in elderly: A double-blind placebo-controlled clinical trial.
    Abbasi B; Kimiagar M; Sadeghniiat K; Shirazi MM; Hedayati M; Rashidkhani B · Journal of research in medical sciences : the official journal of Isfahan University of Medical Sciences · 2013
    Randomized trial46 participantsSleep Support forMagnesium
  85. A randomized, double-blind, placebo-controlled, multicenter study assessing the efficacy of magnesium oxide monohydrate in the treatment of nocturnal leg cramps.
    Barna O; Lohoida P; Holovchenko Y; Bazylevych A; Velychko V; Hovbakh I; Bula L; Shechter M · Nutrition journal · 2021
    Randomized trial175 participantsSleep Support forMagnesium
  86. Comparison Between Efficacy of Oral Melatonin and Oral L-theanine in Improving Sleep in Cancer Patients Suffering From Insomnia: A Randomised Double-blinded Placebo-controlled Study.
    Kurdi MS; As A; Ladhad DA; Mitragotri MV; Baiju A · Indian journal of palliative care · 2024
    Randomized trial120 participantsSleep Support forTheanine
  87. The effects of L-theanine consumption on sleep outcomes: A systematic review and meta-analysis.
    Bulman A; D'Cunha NM; Marx W; Turner M; McKune A; Naumovski N · Sleep medicine reviews · 2025
    Meta-analysis897 participants19 studies pooledSleep Support forTheanine
  88. In Search of a Safe Natural Sleep Aid.
    Rao TP; Ozeki M; Juneja LR · Journal of the American College of Nutrition · 2016
    Narrative reviewSleep Support forTheanine
  89. Relieving occupational fatigue by consumption of a beverage containing γ-amino butyric acid.
    Kanehira T; Nakamura Y; Nakamura K; Horie K; Horie N; Furugori K; Sauchi Y; Yokogoshi H · Journal of nutritional science and vitaminology · 2011
    Clinical trial30 participantsStress Relief forGABA
  90. Cortical gamma-aminobutyric acid and glutamate in posttraumatic stress disorder and their relationships to self-reported sleep quality.
    Meyerhoff DJ; Mon A; Metzler T; Neylan TC · Sleep · 2014
    Case-control study45 participantsStress Relief forGABA
  91. Effects of Intravenous Esketamine or Magnesium Sulfate on Early Postoperative Negative Emotions and Pain in Patients Undergoing Endoscopic Sinus Surgery: A Randomized Controlled Trial.
    Wang L; Zhou J; Liu Q; Qian K; Wang L; Xie C · Therapeutics and clinical risk management · 2026
    Randomized trial137 participantsStress Relief forMagnesium
  92. Effect of short-term magnesium supplementation on anxiety, depression and sleep quality in patients after open-heart surgery.
    Saba S; Faizi F; Sepandi M; Nehrir B · Magnesium research · 2022
    Non-randomized trial60 participantsStress Relief forMagnesium
  93. Effects of dry needling compared to magnesium infiltration in trigger points for patients with myofascial pain syndrome: a randomized controlled study in Tunisia.
    Dhouibi J; Moncer R; Kalbousi N; Gaddour M; Laayouni S; Ouanes W; Kacem B; Jemni S · Korean journal of family medicine · 2026
    Randomized trial45 participantsStress Relief forMagnesium
  94. Effect of magnesium and vitamin B6 supplementation on mental health and quality of life in stressed healthy adults: Post-hoc analysis of a randomised controlled trial.
    Noah L; Dye L; Bois De Fer B; Mazur A; Pickering G; Pouteau E · Stress and health : journal of the International Society for the Investigation of Stress · 2021
    Randomized trialStress Relief forMagnesium
  95. Protective and therapeutic effectiveness of taurine supplementation plus low calorie diet on metabolic parameters and endothelial markers in patients with diabetes mellitus: a randomized, clinical trial.
    Moludi J; Qaisar SA; Kadhim MM; Ahmadi Y; Davari M · Nutrition & metabolism · 2022
    Randomized trial120 participantsStress Relief forTaurine
  96. Effects of taurine supplementation on VDT work induced visual stress.
    Zhang M; Bi LF; Ai YD; Yang LP; Wang HB; Liu ZY; Sekine M; Kagamimori S · Amino acids · 2005
    Randomized trial25 participantsStress Relief forTaurine
  97. Taurine supplementation attenuates delayed increase in exercise-induced arterial stiffness.
    Ra SG; Choi Y; Akazawa N; Ohmori H; Maeda S · Applied physiology, nutrition, and metabolism = Physiologie appliquee, nutrition et metabolisme · 2017
    Randomized trial29 participantsStress Relief forTaurine
  98. Anti-Stress, Behavioural and Magnetoencephalography Effects of an L-Theanine-Based Nutrient Drink: A Randomised, Double-Blind, Placebo-Controlled, Crossover Trial.
    White DJ; de Klerk S; Woods W; Gondalia S; Noonan C; Scholey AB · Nutrients · 2016
    Randomized trial34 participantsStress Relief forTheanine
  99. Magnesium and anabolic hormones in older men.
    Maggio M; Ceda GP; Lauretani F; Cattabiani C; Avantaggiato E; Morganti S; Ablondi F; Bandinelli S; Dominguez LJ; Barbagallo M; Paolisso G; Semba RD; Ferrucci L · International journal of andrology · 2012
    Cohort study399 participantsTestosterone Support forMagnesium
  100. Analysis of the relationship between the blood concentration of several metals, macro- and micronutrients and endocrine disorders associated with male aging.
    Rotter I; Kosik-Bogacka DI; Dołęgowska B; Safranow K; Kuczyńska M; Laszczyńska M · Environmental geochemistry and health · 2017
    Cross-sectional study313 participantsTestosterone Support forMagnesium
  101. Effect of magnesium supplementation in improving hyperandrogenism, hirsutism, and sleep quality in women with polycystic ovary syndrome: A randomized, placebo-controlled clinical trial.
    Gholizadeh-Moghaddam M; Ghasemi-Tehrani H; Askari G; Jaripur M; Clark CCT; Rouhani MH · Health science reports · 2024
    Randomized trial64 participantsTestosterone Support forMagnesium
  102. The effects of trace element supplementation on glycolipid metabolism in PCOS: a systematic review and meta-analysis.
    Yang L; Gao Y; Zhao W; Qi Y; Duo X; Wang H · Frontiers in nutrition · 2025
    Meta-analysis1,600 participants25 studies pooledTestosterone Support forMagnesium
  103. Effects of magnesium supplementation on testosterone levels of athletes and sedentary subjects at rest and after exhaustion.
    Cinar V; Polat Y; Baltaci AK; Mogulkoc R · Biological trace element research · 2011
    Non-randomized trial20 participantsTestosterone Support forMagnesium