Product Image

Ener-C Tangerine Grapefruit

Pauling Labs
4.6
★ ★ ★ ★ ★
(94 ratings)
Vitamin C 1000 mg
Iodine 150 mcg
Vitamin A 2500 IU
Potassium 200 mg
Vitamin E 15 IU
Product Image
Score74
A practical buffered vitamin C packet with a wide range of small nutrient additions. It offers light daily support, but mineral transparency and electrolyte depth are limited.
How scoring works
Quantity:30 Packet(s) • (29 servings)
Goals:
Immunity
General Health
Skin Health
Anti-Inflammatory Support

Score 74

A practical buffered vitamin C packet with a wide range of small nutrient additions. It offers light daily support, but mineral transparency and electrolyte depth are limited.
How scoring works
$11.95($0.41 per serving)
iHerb
$ 16.64
Pure Formulas
$ 11.95
Vitacost
$ 16.67
Report prices

Analysis

A mineral-ascorbate blend provides 1,000 mg of vitamin C for focused antioxidant and nutritional support. Vitamins A and E, zinc, iodine, magnesium, potassium, and several B vitamins add modest complementary coverage.

The packet discloses amounts but not the forms of many minerals or the composition of the ascorbate blend. Potassium and magnesium are also too low to make the drink a serious electrolyte replacement.

The low-cost packet format fits users who want a flavored alternative to tablets. Five grams of carbohydrate and basic forms such as cyanocobalamin and vitamin A acetate temper the otherwise useful design.

Who is it for
  • Adults who want vitamin C in a drink
  • People seeking a portable supplement format
  • Users wanting modest vitamin and mineral breadth
Best for
  • Buffered vitamin C
  • Single-serving convenience
  • General nutrient support

Pros

  • Delivers 1,000 mg of vitamin C
  • Buffered form may improve stomach comfort
  • Includes B vitamins, zinc, iodine, and electrolytes

Cons

  • Many mineral compounds are not specified
  • Not enough magnesium or potassium for focused hydration
  • Contains 5 g of carbohydrate

Warnings

  • The vitamin C amount may cause digestive discomfort or loose stools in sensitive people.
  • Preformed vitamin A should be included when calculating total supplemental vitamin A intake.
  • Added potassium can matter for people with kidney impairment or those using potassium-retaining medicines.

Nutrient quality

75 High impact

A substantial vitamin C dose anchors the formula, while many supporting nutrient forms remain unspecified. Most amounts are moderate and aligned with broad daily-health use.

.

Ingredient transparency

73 High impact

Active amounts are clearly listed without a hidden blend. Incomplete use directions and missing inactive-ingredient details limit full label transparency.

.

Customer satisfaction

63 Moderate impact

The supplied average rating is strong. The review count is useful but much smaller than for the other flavors.

.

Value for money

83 Highest impact

A substantial core dose and low serving cost support good value. The focused nutrient list avoids most costly low-value extras.

.
Report analysis

Goals

Immunity
Immunity
Impact
Highest effect
A- Goal FitA- Strength of SupportB+ CoverageB+ Formula Quality
Magnesium · 60 mgVitamin C · 1000 mgZinc · 5 mgVitamin A · 2500 IU

A substantial buffered vitamin C amount leads the formula and supports immune-cell function and antioxidant protection. Vitamin A and zinc add barrier and cellular support, while electrolytes broaden everyday utility.

The zinc amount is modest and several mineral forms are not specified. Strong vitamin C dosing gives the product useful immune depth despite incomplete form detail.

Study evidence
Vitamin A Supportive 107 studies
Vitamin C Supportive 53 studies
Zinc Supportive 73 studies
General Health
General Health
Impact
High effect
A- Goal FitB Strength of SupportB CoverageB Formula Quality
Folate · 40 mcgVitamin B12 · 25 mcgMagnesium · 60 mgZinc · 5 mgVitamin C · 1000 mg

A full serving delivers a well-targeted amount of buffered vitamin C alongside a useful range of vitamins and electrolytes. The formula can help fill several routine nutrient gaps and supports antioxidant and immune functions.

Many nutrients beyond vitamin C are present at modest amounts, and cyanocobalamin is a basic vitamin B12 form. The packet works best as a vitamin C-centered drink rather than a complete replacement for a balanced multivitamin.

Study evidence
Vitamin C Supportive 56 studies
Skin Health
Skin Health
Impact
High effect
B Goal FitA- Strength of SupportB CoverageB- Formula Quality
Zinc · 5 mgVitamin C · 1000 mgVitamin E · 15 IU

A high buffered vitamin C dose provides strong support for collagen synthesis and antioxidant defense. Vitamins A and E plus zinc broaden the formula, although their amounts are more modest.

The packet clearly discloses its key nutrients and uses mineral ascorbates for gentler vitamin C delivery. It lacks collagen, ceramides, or other direct structural and hydration actives.

Study evidence
Vitamin A Supportive 106 studies
Vitamin C Supportive 53 studies
Vitamin E Supportive 38 studies
Zinc Supportive 66 studies
Anti-Inflammatory Support
Cellular Defense
Anti-Inflammatory Support
Impact
High effect
C Goal FitB Strength of SupportC- CoverageC+ Formula Quality
Vitamin E · 15 IUVitamin C · 1000 mg

A substantial buffered vitamin C amount supports antioxidant defenses that can help moderate inflammatory stress. Small vitamin E and mineral amounts add general nutrition but do not create a targeted multi-pathway formula.

Mineral ascorbates improve gastric tolerance, although the exact contributing salts are not separated. The packet is useful for vitamin C support, but the remaining nutrients are mostly maintenance-level additions.

Study evidence
Vitamin C Supportive 50 studies
Vitamin E Supportive 20 studies
Energy
Physical Stamina
Energy
Impact
Moderate effect
C+ Goal FitD- Strength of SupportD+ CoverageC+ Formula Quality
Iodine · 150 mcgVitamin B5 · 2.5 mgMagnesium · 60 mgVitamin B12 · 25 mcgPotassium · 200 mg

A vitamin and electrolyte drink may help maintain energy when low micronutrient intake contributes to fatigue. Vitamin C, iodine, potassium, and several B vitamins provide broad nutritional support.

The energy-relevant B vitamins, B12, and magnesium are mostly modest, and several mineral forms are not disclosed. It is better suited to hydration and general nutrient intake than to noticeable alertness or stamina support.

Study evidence
Iodine Adverse 3 studies
Magnesium Supportive 4 studies
Potassium Supportive 2 studies
Vision Support
Macular and Blue Light DefenseNight Vision
Vision Support
Impact
Moderate effect
D+ Goal FitD+ Strength of SupportD CoverageC Formula Quality
Zinc · 5 mgVitamin E · 15 IUVitamin C · 1000 mgVitamin A · 2500 IU

A buffered 1,000 mg vitamin C serving provides strong ocular antioxidant support. Vitamin A, vitamin E, and zinc add a lighter secondary antioxidant and night-vision foundation.

The packet lacks lutein, zeaxanthin, astaxanthin, DHA, and EPA. Its hydration-oriented multivitamin design covers antioxidants but not macular filtration or retinal structure.

Study evidence
Vitamin A Supportive 65 studies
Vitamin C Disputed 24 studies
Vitamin E Disputed 35 studies
Zinc Supportive 39 studies

Ingredients

IngredientAmount per serving
Calories
25 {Calories}
Total Carbohydrates
5 Gram(s)
Vitamin C (Mineral Ascorbate mix)
 1000 mg
Vitamin A (Vitamin A Acetate)
 2500 IU
Vitamin E (Alpha-Tocopheryl Acetate)
 15 IU
Vitamin B3 (Niacin)
 5 mg
Vitamin B6 (Pyridoxine)
 2 mg
Folate
40 mcg
Vitamin B12 (Cyanocobalamin)
 25 mcg
Pantothenic Acid
2.5 mg
Calcium
50 NP
Phosphorus
38 mg
Iodine
150 mcg
Magnesium
60 mg
Zinc
5 mg
Manganese
0.5 mg
Chromium
12 mcg
Potassium
200 mg
Adults 18–50
Report overview
Vitamin C (Mineral Ascorbate mix) · 1000 mg OverallScore80
B+ Active Ingredient Quality & BioavailabilityA Dose, Safety & Label TransparencyD+ Value

A mineral ascorbate blend provides a buffered, stomach-friendly form of vitamin C. The 1 g serving is efficiently targeted, though the label does not connect each elemental mineral amount to a specific ascorbate source. Cost efficiency is average for the convenient packet format.

View ingredientView products
Iodine · 150 mcg OverallScore72
F Active Ingredient Quality & BioavailabilityA+ Dose, Safety & Label TransparencyB+ Value

The packet supplies a clearly quantified iodine amount in the preferred daily range. Its chemical form and source are not disclosed, limiting assessment of absorption consistency and purity. A single drink packet is convenient and priced below the collection median, though it cannot be titrated like drops.

View ingredientView products
Vitamin A (Vitamin A Acetate) · 2500 IU OverallScore69
F Active Ingredient Quality & BioavailabilityA+ Dose, Safety & Label TransparencyB- Value

The vitamin A form is a significant quality limitation. Absorption depends largely on taking the product with dietary fat. The dose is well aligned and cost efficiency is favorable.

View ingredientView products
Loading alternative details
84 Performance

Wonder-C Orange Tangerine

Codeage Nanofood
<p>A more targeted antioxidant and immune profile pairs 1,000 mg of vitamin C with vitamin D3, natural d-alpha vitamin E, zinc bisglycinate, rose hip, and quercetin. Compared with the original, the zinc and vitamin E forms are more clearly characterized, but the high vitamin D amount and hidden liposomal blend warrant caution.</p>
81 Performance

Immune+ Raspberry

Emergen-C
<p>Adding 25 mcg of vitamin D3 and 10 mg of zinc to 1,000 mg of vitamin C gives the formula more direct immune-focused coverage than the original. A 500 mg proprietary complex and the higher carbohydrate amount weaken transparency, so the advantage is goal focus rather than label clarity.</p>
72 Performance

Premium Adult Multi-Vitamin Mineral

Tropical Oasis
<p>Natural d-alpha vitamin E and methylcobalamin improve two nutrient forms, while folate, biotin, vitamin D, and a wider B-vitamin panel support broad nutrition. Vitamin C falls to 60 mg and a hidden herbal blend limits assessment, so it is a better fit only when multivitamin breadth matters more than a high-dose vitamin C drink.</p>
84 Budget

Buffered Vitamin C Powder

Life Extension
<p>A much lower serving cost provides a concentrated vitamin C option with 4,000 mg of ascorbic acid and 365 mg of potassium. Compared with the original, the very large vitamin C amount may cause stomach upset, and vitamins A and E, iodine, and the B vitamins are absent.</p>
55 Budget

Poly-Vi-Sol

Enfamil
<p>A lower serving cost provides a basic panel of vitamins A, C, D, E, and several B vitamins. The supplied label lists only 35 mg of vitamin C, gives no chemical forms, and describes a pediatric product, so it is not a like-for-like adult substitute and only fits when the intended age group matches.</p>
73 Budget

Ener-C Lemon Lime

Pauling Labs
<p>No third eligible candidate has a confirmed lower serving cost, so this marginally higher-cost flavor is the nearest budget match in the supplied list. It preserves the same 1,000 mg mineral ascorbate mix and supporting vitamins and minerals, with the same gaps around inactive ingredients and complete directions.</p>
89 Value

Lemon Lime

Pauling Labs
<p>Near-identical ingredients and a matched or lower serving cost make this an efficient substitute without changing the core 1,000 mg mineral ascorbate mix. Vitamins A and E, iodine, zinc, and potassium remain included, although inactive ingredients and full directions are still missing.</p>
78 Value

1000 mg Vitamin C Raspberry

Emergen-C
<p>A similar serving cost retains 1,000 mg of vitamin C and 200 mg of potassium while naming several mineral forms more clearly. The broader B-vitamin mix improves label detail, but higher carbohydrates and the absence of vitamins A and E plus iodine are meaningful trade-offs.</p>
66 Value

Energy +

Noor Vitamins
<p>Broad vitamins and minerals provide useful general-nutrition value, with calcium ascorbate, two vitamin A sources, iodine, selenium, and a wide B-vitamin panel. The much smaller vitamin C amount, synthetic vitamin E, oxide minerals, and hidden herbal blend make it less suitable for focused vitamin C use.</p>
Report alternatives

Sources

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

  1. Associations of Serum Biomarkers of Fruit and Vegetable Intake With the Risk of Cause-Specific Mortality and All-Cause Mortality: A National Prospective Cohort Study.
    Pu L; Zhang R; Wang X; Zhao T; Sun H; Han L · Frontiers in nutrition · 2022
    Cohort study12,530 participantsGeneral Health forVitamin C
  2. Serum vitamin C and spinal pain: a nationwide study.
    Dionne CE; Laurin D; Desrosiers T; Abdous B; Le Sage N; Frenette J; Mondor M; Pelletier S · Pain · 2017
    Cross-sectional study4,742 participantsGeneral Health forVitamin C
  3. Efficacy of Vitamin C as Glucocorticoid Substitute for Reducing Pain and Inflammation After Total Hip Arthroplasty: A Randomized Controlled Trial.
    Jiang W; Xu H; Jiang X; Zhan Y; Ju Y; Xie J; Huang Z; Huang Q; Pei F · The Journal of bone and joint surgery. American volume · 2025
    Randomized trial107 participantsAnti-Inflammatory Support forVitamin C
  4. The Impact of Vitamin C on Analgesic, Anti-inflammatory, and Hemostatic Outcomes After Total Hip and Knee Arthroplasty: A Systematic Review and Meta-Analysis.
    Moftakhari Hajimirzaei S; Bagherzadeh Cham M; Dolikhani M; Tabatabaee SM; Ebrahimpour A · The archives of bone and joint surgery · 2026
    Meta-analysis1,162 participants10 studies pooledAnti-Inflammatory Support forVitamin C
  5. The impact of vitamin C supplementation on the perioperative outcomes after total hip and knee arthroplasty: a systematic review and meta-analysis.
    Liu X; Guo J; Li Y; Yang Y; Liu M; Gao Q; Yang Y; Wu X; Yue C · BMC musculoskeletal disorders · 2026
    Meta-analysis852 participants8 studies pooledAnti-Inflammatory Support forVitamin C
  6. Therapeutic Impact of Ascorbic Acid on Oral and Periodontal Tissues: A Systematic Literature Review.
    Ruzijevaite G; Acaite E; Jagelaviciene E · Medicina (Kaunas, Lithuania) · 2025
    Systematic review811 participants17 studies pooledAnti-Inflammatory Support forVitamin C
  7. Oral vitamin C administration reduces early recurrence rates after electrical cardioversion of persistent atrial fibrillation and attenuates associated inflammation.
    Korantzopoulos P; Kolettis TM; Kountouris E; Dimitroula V; Karanikis P; Pappa E; Siogas K; Goudevenos JA · International journal of cardiology · 2005
    Randomized trial44 participantsAnti-Inflammatory Support forVitamin C
  8. Effects of delta-tocotrienol supplementation on Glycemic Control, oxidative stress, inflammatory biomarkers and miRNA expression in type 2 diabetes mellitus: A randomized control trial.
    Mahjabeen W; Khan DA; Mirza SA; Pervez MA · Phytotherapy research : PTR · 2021
    Randomized trial110 participantsAnti-Inflammatory Support forVitamin E
  9. Effect of vitamin E supplementation on serum C-reactive protein level: a meta-analysis of randomized controlled trials.
    Saboori S; Shab-Bidar S; Speakman JR; Yousefi Rad E; Djafarian K · European journal of clinical nutrition · 2016
    Meta-analysis495 participants12 studies pooledAnti-Inflammatory Support forVitamin E
  10. Efficacy of Nutritional Interventions on Inflammatory Markers in Haemodialysis Patients: A Systematic Review and Limited Meta-Analysis.
    Khor BH; Narayanan SS; Sahathevan S; Gafor AHA; Daud ZAM; Khosla P; Sabatino A; Fiaccadori E; Chinna K; Karupaiah T · Nutrients · 2018
    Meta-analysis46 studies pooledAnti-Inflammatory Support forVitamin E
  11. Vitamin E improves serum markers and histology in adults with metabolic dysfunction-associated steatotic liver disease: Systematic review and meta-analysis.
    Chee NM; Sinnanaidu RP; Chan WK · Journal of gastroenterology and hepatology · 2024
    Meta-analysis8 studies pooledAnti-Inflammatory Support forVitamin E
  12. Delta-tocotrienol supplementation improves biochemical markers of hepatocellular injury and steatosis in patients with nonalcoholic fatty liver disease: A randomized, placebo-controlled trial.
    Pervez MA; Khan DA; Slehria AUR; Ijaz A · Complementary therapies in medicine · 2021
    Randomized trial71 participantsAnti-Inflammatory Support forVitamin E
  13. Association of radioactive iodine treatment with survivorship symptoms and primary care utilisation in women of reproductive age with thyroid cancer: a retrospective cohort study.
    Devanarayan P; Hartman M; Partin M · Family medicine and community health · 2026
    Cohort study10,882 participantsEnergy forIodine
  14. Energy level and fatigue after surgery for thyroid cancer: A population-based study of patient-reported outcomes.
    Hughes DT; Reyes-Gastelum D; Kovatch KJ; Hamilton AS; Ward KC; Haymart MR · Surgery · 2020
    Cohort study2,584 participantsEnergy forIodine
  15. Health-Related Quality of Life in Differentiated Thyroid Cancer Survivors: A Cross-Sectional Study From Turkey.
    Gültekin A; Kahraman MY; Şengöz T; Şimşek FS · Head & neck · 2026
    Cross-sectional study202 participantsEnergy forIodine
  16. 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 participantsEnergy forMagnesium
  17. 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
  18. Red blood cell magnesium and chronic fatigue syndrome.
    Cox IM; Campbell MJ; Dowson D · Lancet (London, England) · 1991
    Randomized trial32 participantsEnergy forMagnesium
  19. Exercise, magnesium and immune function.
    Laires MJ; Monteiro C · Magnesium research · 2008
    Narrative reviewEnergy forMagnesium
  20. [Efficacy of potassium N-acetylaminosuccinate (Cogitum) in the treatment of asthenic syndrome: results of double-blind placebo-controlled trial].
    Esin RG; Khayrullin IK; Esin OR; Fatykhova AF; Gismatullina EI; Isaeva YN · Zhurnal nevrologii i psikhiatrii imeni S.S. Korsakova · 2023
    Randomized trial37 participantsEnergy forPotassium
  21. Human resting energy expenditure in relation to dietary potassium.
    Dériaz O; Thériault G; Lavallée N; Fournier G; Nadeau A; Bouchard C · The American journal of clinical nutrition · 1991
    Randomized trial8 participantsEnergy forPotassium
  22. Dietary intake and blood concentrations of antioxidants and the risk of cardiovascular disease, total cancer, and all-cause mortality: a systematic review and dose-response meta-analysis of prospective studies.
    Aune D; Keum N; Giovannucci E; Fadnes LT; Boffetta P; Greenwood DC; Tonstad S; Vatten LJ; Riboli E; Norat T · The American journal of clinical nutrition · 2019
    Meta-analysis69 studies pooledGeneral Health forVitamin C
  23. Scientific Opinion on the substantiation of a health claim related to vitamin C and increasing non haem iron absorption pursuant to Article 14 of Regulation (EC) No 1924/2006.
    EFSA Panel on Dietetic Products, Nutrition and Allergies (NDA) · EFSA journal. European Food Safety Authority · 2026
    Guideline / consensusGeneral Health forVitamin C
  24. Vitamin C Depletion and All-Cause Mortality in Renal Transplant Recipients.
    Sotomayor CG; Eisenga MF; Gomes Neto AW; Ozyilmaz A; Gans ROB; Jong WHA; Zelle DM; Berger SP; Gaillard CAJM; Navis GJ; Bakker SJ · Nutrients · 2018
    Cohort study598 participantsGeneral Health forVitamin C
  25. Relation between plasma ascorbic acid and mortality in men and women in EPIC-Norfolk prospective study: a prospective population study. European Prospective Investigation into Cancer and Nutrition.
    Khaw KT; Bingham S; Welch A; Luben R; Wareham N; Oakes S; Day N · Lancet (London, England) · 2001
    Cohort study19,496 participantsGeneral Health forVitamin C
  26. Depressed immune response to tetanus in children with vitamin A deficiency.
    Semba RD; Muhilal; Scott AL; Natadisastra G; Wirasasmita S; Mele L; Ridwan E; West KP; Sommer A · The Journal of nutrition · 1992
    Randomized trial236 participantsImmunity forVitamin A
  27. Impact of a single megadose of vitamin A at delivery on breastmilk of mothers and morbidity of their infants.
    Roy SK; Islam A; Molla A; Akramuzzaman SM; Jahan F; Fuchs G · European journal of clinical nutrition · 1997
    Randomized trial50 participantsImmunity forVitamin A
  28. Vitamin A supplementation reduces measles morbidity in young African children: a randomized, placebo-controlled, double-blind trial.
    Coutsoudis A; Broughton M; Coovadia HM · The American journal of clinical nutrition · 1991
    Randomized trial60 participantsImmunity forVitamin A
  29. Vitamin A supplementation enhances specific IgG antibody levels and total lymphocyte numbers while improving morbidity in measles.
    Coutsoudis A; Kiepiela P; Coovadia HM; Broughton M · The Pediatric infectious disease journal · 1992
    Randomized trial60 participantsImmunity forVitamin A
  30. Vitamin A supplementation reduces the monocyte chemoattractant protein-1 intestinal immune response of Mexican children.
    Long KZ; Santos JI; Estrada Garcia T; Haas M; Firestone M; Bhagwat J; Dupont HL; Hertzmark E; Rosado JL; Nanthakumar NN · The Journal of nutrition · 2006
    Randomized trial127 participantsImmunity forVitamin A
  31. Vitamin C and contribution to the normal function of the immune system: evaluation of a health claim pursuant to Article 14 of Regulation (EC) No 1924/2006.
    EFSA Panel on Dietetic Products, Nutrition and Allergies (NDA) · EFSA journal. European Food Safety Authority · 2026
    Guideline / consensusImmunity forVitamin C
  32. Therapeutic effects of high-dose vitamin C supplementation in patients with COVID-19: a meta-analysis.
    Sun L; Zhao JH; Fan WY; Feng B; Liu WW; Chen RQ; Ban C; Dang AG; Wang M; Luo KT; Zhou GY; Yu FF; Ba Y · Nutrition reviews · 2024
    Meta-analysis2,334 participants14 studies pooledImmunity forVitamin C
  33. Effect of micronutrient supplements on influenza and other respiratory tract infections among adults: a systematic review and meta-analysis.
    Abioye AI; Bromage S; Fawzi W · BMJ global health · 2021
    Meta-analysisImmunity forVitamin C
  34. New evidence for antioxidant properties of vitamin C.
    Vojdani A; Bazargan M; Vojdani E; Wright J · Cancer detection and prevention · 2001
    Randomized trial20 participantsImmunity forVitamin C
  35. Enhanced Vitamin C Delivery: A Systematic Literature Review Assessing the Efficacy and Safety of Alternative Supplement Forms in Healthy Adults.
    Calder PC; Kreider RB; McKay DL · Nutrients · 2025
    Systematic review13 studies pooledImmunity forVitamin C
  36. Nutrient supplementation for prevention of viral respiratory tract infections in healthy subjects: A systematic review and meta-analysis.
    Vlieg-Boerstra B; de Jong N; Meyer R; Agostoni C; De Cosmi V; Grimshaw K; Milani GP; Muraro A; Oude Elberink H; Pali-Schöll I; Roduit C; Sasaki M; Skypala I; Sokolowska M; van Splunter M; Untersmayr E; Venter C; O'Mahony L; Nwaru BI · Allergy · 2022
    Meta-analysis199,055 participants115 studies pooledImmunity forZinc
  37. Zinc supplementation reduces the incidence of acute lower respiratory infections in infants and preschool children: a double-blind, controlled trial.
    Sazawal S; Black RE; Jalla S; Mazumdar S; Sinha A; Bhan MK · Pediatrics · 1998
    Randomized trial609 participantsImmunity forZinc
  38. A randomized controlled trial of zinc supplementation in the treatment of acute respiratory tract infection in Thai children.
    Rerksuppaphol S; Rerksuppaphol L · Pediatric reports · 2020
    Randomized trial64 participantsImmunity forZinc
  39. The effect of zinc and vitamin A supplementation on immune response in an older population.
    Fortes C; Forastiere F; Agabiti N; Fano V; Pacifici R; Virgili F; Piras G; Guidi L; Bartoloni C; Tricerri A; Zuccaro P; Ebrahim S; Perucci CA · Journal of the American Geriatrics Society · 1998
    Randomized trial136 participantsImmunity forZinc
  40. The role of specific nutrients in preventing immune system and blood cell disorders: an umbrella review.
    Vecchietti A; Strano P; Minutolo G; Grieco V; Cappuccio G; Granvillano G; Confalonieri L; Briganti GL; Raso E; Chimienti M; Pellegrini M; Mercogliano M; Spatari G; Lugli C; Urbano T; Lorenzon A · Journal of preventive medicine and hygiene · 2026
    Systematic review13 studies pooledImmunity forZinc
  41. Efficacy and Tolerability of Topical 0.1% Stabilized Bioactive Retinol for Photoaging: A Vehicle-Controlled Integrated Analysis.
    Farris P; Berson D; Bhatia N; Goldberg D; Lain E; Mariwalla K; Zeichner J; Miller D; McGuire T; Kizoulis M · Journal of drugs in dermatology : JDD · 2024
    Meta-analysis471 participants6 studies pooledSkin Health forVitamin A
  42. Tensile properties and contours of aging facial skin. A controlled double-blind comparative study of the effects of retinol, melibiose-lactose and their association.
    Piérard-Franchimont C; Castelli D; Cromphaut IV; Bertin C; Ries G; Cauwenbergh G; Piérard GE · Skin research and technology : official journal of International Society for Bioengineering and the Skin (ISBS) [and] International Society for Digital Imaging of Skin (ISDIS) [and] International Society for Skin Imaging (ISSI) · 2016
    Randomized trial120 participantsSkin Health forVitamin A
  43. Antiaging action of retinol: from molecular to clinical.
    Bellemère G; Stamatas GN; Bruère V; Bertin C; Issachar N; Oddos T · Skin pharmacology and physiology · 2009
    Randomized trial48 participantsSkin Health forVitamin A
  44. An Updated Review of Topical Tretinoin in Dermatology: From Acne and Photoaging to Skin Cancer.
    Balado-Simó P; Morgado-Carrasco D; Gómez-Armayones S; López-Ferrer A; Barco D; Ferrándiz-Pulido C; Podlipnik S · Journal of clinical medicine · 2025
    Narrative reviewSkin Health forVitamin A
  45. Novel Cyclized Hexapeptide-9 Outperforms Retinol Against Skin Aging: A Randomized, Double-Blinded, Active- and Vehicle-Controlled Clinical Trial.
    Chang H; Tao K; Yang Y; Wang Y; Ge M; Wang X; Tang S; Yu H · Journal of cosmetic dermatology · 2025
    Randomized trialSkin Health forVitamin A
  46. Evaluation of the anti-wrinkle effect of an ascorbic acid-loaded dissolving microneedle patch via a double-blind, placebo-controlled clinical study.
    Lee C; Yang H; Kim S; Kim M; Kang H; Kim N; An S; Koh J; Jung H · International journal of cosmetic science · 2017
    Randomized trial23 participantsSkin Health forVitamin C
  47. Comparative Study on the Outcome of Periorbital Wrinkles Treated with Laser-Assisted Delivery of Vitamin C or Vitamin C Plus Growth Factors: A Randomized, Double-blind, Clinical Trial.
    Machado BHB; Frame J; Zhang J; Najlah M · Aesthetic plastic surgery · 2021
    Randomized trial149 participantsSkin Health forVitamin C
  48. Randomized trial of topical ascorbic acid in DMSO versus imiquimod for the treatment of basal cell carcinoma.
    Burke B; Bailie JE · Biomedicine & pharmacotherapy = Biomedecine & pharmacotherapie · 2022
    Randomized trial25 participantsSkin Health forVitamin C
  49. Vitamin C improves healing of foot ulcers: a randomised, double-blind, placebo-controlled trial.
    Gunton JE; Girgis CM; Lau T; Vicaretti M; Begg L; Flood V · The British journal of nutrition · 2022
    Randomized trial16 participantsSkin Health forVitamin C
  50. Dietary nutrient intakes and skin-aging appearance among middle-aged American women.
    Cosgrove MC; Franco OH; Granger SP; Murray PG; Mayes AE · The American journal of clinical nutrition · 2007
    Cross-sectional study4,025 participantsSkin Health forVitamin C
  51. Randomized controlled trial using vitamins E and D supplementation in atopic dermatitis.
    Javanbakht MH; Keshavarz SA; Djalali M; Siassi F; Eshraghian MR; Firooz A; Seirafi H; Ehsani AH; Chamari M; Mirshafiey A · The Journal of dermatological treatment · 2011
    Randomized trial45 participantsSkin Health forVitamin E
  52. Serum vitamin E levels and chronic inflammatory skin diseases: A systematic review and meta-analysis.
    Liu X; Yang G; Luo M; Lan Q; Shi X; Deng H; Wang N; Xu X; Zhang C · PloS one · 2022
    Meta-analysis20 studies pooledSkin Health forVitamin E
  53. Evidence-Based Nutritional Interventions in Wound Care.
    Saeg F; Orazi R; Bowers GM; Janis JE · Plastic and reconstructive surgery · 2021
    Systematic review2,339 participants36 studies pooledSkin Health forVitamin E Skin Health forZinc
  54. Effects of tocotrienol on aging skin: A systematic review.
    Ghazali NI; Mohd Rais RZ; Makpol S; Chin KY; Yap WN; Goon JA · Frontiers in pharmacology · 2022
    Systematic reviewSkin Health forVitamin E
  55. Carotenoids and carotenoids plus vitamin E protect against ultraviolet light-induced erythema in humans.
    Stahl W; Heinrich U; Jungmann H; Sies H; Tronnier H · The American journal of clinical nutrition · 2000
    Randomized trialSkin Health forVitamin E
  56. Sex-related differences in response to zinc pyrithione shampoo vs. non-anti-dandruff shampoo.
    Collins LZ; Baines FL; Matheson JR; Turner GA; Diao Y; Li Y; Pi Y · International journal of cosmetic science · 2019
    Meta-analysis2,088 participants20 studies pooledSkin Health forZinc
  57. Maintenance of an Acidic Skin Surface with a Novel Zinc Lactobionate Emollient Preparation Improves Skin Barrier Function in Patients with Atopic Dermatitis.
    Andrew PV; Pinnock A; Poyner A; Brown K; Chittock J; Kay LJ; Cork MJ; Danby SG · Dermatology and therapy · 2024
    Cohort study23 participantsSkin Health forZinc
  58. Spatial expression of metallothionein, matrix metalloproteinase-1 and Ki-67 in human epidermal wounds treated with zinc and determined by quantitative immunohistochemistry: A randomised double-blind trial.
    Ågren MS; Chafranska L; Eriksen JO; Forman JL; Bjerrum MJ; Schjerling P; Larsen HF; Cottarelli E; Jorgensen LN; Gjerdrum LMR · European journal of cell biology · 2021
    Randomized trial30 participantsSkin Health forZinc
  59. A pilot trial using topical regular crystalline insulin vs. aqueous zinc solution for uncomplicated cutaneous wound healing: Impact on quality of life.
    Attia EA; Belal DM; El Samahy MH; El Hamamsy MH · Wound repair and regeneration : official publication of the Wound Healing Society [and] the European Tissue Repair Society · 2014
    Randomized trial90 participantsSkin Health forZinc
  60. A randomized trial of vitamin A and vitamin E supplementation for retinitis pigmentosa.
    Berson EL; Rosner B; Sandberg MA; Hayes KC; Nicholson BW; Weigel-DiFranco C; Willett W · Archives of ophthalmology (Chicago, Ill. : 1960) · 1993
    Randomized trial601 participantsVision Support forVitamin A
  61. Efficacy and safety of retinol palmitate ophthalmic solution in the treatment of dry eye: a Japanese Phase II clinical trial.
    Toshida H; Funaki T; Ono K; Tabuchi N; Watanabe S; Seki T; Otake H; Kato T; Ebihara N; Murakami A · Drug design, development and therapy · 2018
    Randomized trial66 participantsVision Support forVitamin A
  62. Vitamin A supplementation for preventing morbidity and mortality in children from six months to five years of age.
    Imdad A; Mayo-Wilson E; Haykal MR; Regan A; Sidhu J; Smith A; Bhutta ZA · The Cochrane database of systematic reviews · 2022
    Meta-analysis1,223,856 participants47 studies pooledVision Support forVitamin A
  63. Vitamin A supplementation improves retinal function in infants at risk of retinopathy of prematurity.
    Mactier H; McCulloch DL; Hamilton R; Galloway P; Bradnam MS; Young D; Lavy T; Farrell L; Weaver LT · The Journal of pediatrics · 2012
    Randomized trial89 participantsVision Support forVitamin A
  64. Effect of short-term, high-dose retinol on dark adaptation in aging and early age-related maculopathy.
    Owsley C; McGwin G; Jackson GR; Heimburger DC; Piyathilake CJ; Klein R; White MF; Kallies K · Investigative ophthalmology & visual science · 2006
    Randomized trial104 participantsVision Support forVitamin A
  65. Role of Oral Vitamin 'C' on Astigmatic Errors in Phacoemulsification.
    Mohan S; Sah K; Khattri M; Ahmad L; Sachan SK · Current eye research · 2021
    Randomized trial400 participantsVision Support forVitamin C
  66. Ascorbic acid metabolites are involved in intraocular pressure control in the general population.
    Hysi PG; Khawaja AP; Menni C; Tamraz B; Wareham N; Khaw KT; Foster PJ; Benet LZ; Spector TD; Hammond CJ · Redox biology · 2019
    Observational studyVision Support forVitamin C
  67. Nutritional modulation of cataract.
    Weikel KA; Garber C; Baburins A; Taylor A · Nutrition reviews · 2014
    Narrative reviewVision Support forVitamin C
  68. Dietary n-3 Fatty Acid, α-Tocopherol, Zinc, vitamin D, vitamin C, and β-carotene are Associated with Age-Related Macular Degeneration in Japan.
    Aoki A; Inoue M; Nguyen E; Obata R; Kadonosono K; Shinkai S; Hashimoto H; Sasaki S; Yanagi Y · Scientific reports · 2017
    Case-control study530 participantsVision Support forVitamin C Vision Support forVitamin E
  69. Adherence to a Mediterranean diet, lifestyle and age-related macular degeneration: the Coimbra Eye Study - report 3.
    Raimundo M; Mira F; Cachulo MDL; Barreto P; Ribeiro L; Farinha C; Laíns I; Nunes S; Alves D; Figueira J; Merle BM; Delcourt C; Santos L; Silva R · Acta ophthalmologica · 2019
    Case-control study883 participantsVision Support forVitamin C
  70. Antioxidant vitamin and mineral supplements for preventing age-related macular degeneration.
    Evans JR; Lawrenson JG · The Cochrane database of systematic reviews · 2018
    Meta-analysis55,614 participants4 studies pooledVision Support forVitamin E
  71. Dietary carotenoids, vitamins C and E, and risk of cataract in women: a prospective study.
    Christen WG; Liu S; Glynn RJ; Gaziano JM; Buring JE · Archives of ophthalmology (Chicago, Ill. : 1960) · 2008
    Cohort study35,551 participantsVision Support forVitamin E
  72. Long-term nutrient intake and 5-year change in nuclear lens opacities.
    Jacques PF; Taylor A; Moeller S; Hankinson SE; Rogers G; Tung W; Ludovico J; Willett WC; Chylack LT · Archives of ophthalmology (Chicago, Ill. : 1960) · 2005
    Cohort study408 participantsVision Support forVitamin E
  73. Dietary intake of antioxidants and risk of age-related macular degeneration.
    van Leeuwen R; Boekhoorn S; Vingerling JR; Witteman JC; Klaver CC; Hofman A; de Jong PT · JAMA · 2005
    Cohort study4,765 participantsVision Support forVitamin E
  74. Antioxidant vitamin and mineral supplements for age-related macular degeneration.
    Evans JR · The Cochrane database of systematic reviews · 2002
    Systematic review170 participants7 studies pooledVision Support forZinc
  75. Antioxidant vitamin and mineral supplements for slowing the progression of age-related macular degeneration.
    Evans JR; Lawrenson JG · The Cochrane database of systematic reviews · 2023
    Meta-analysis3,790 participants5 studies pooledVision Support forZinc
  76. Oral zinc in macular degeneration.
    Newsome DA; Swartz M; Leone NC; Elston RC; Miller E · Archives of ophthalmology (Chicago, Ill. : 1960) · 1988
    Randomized trial151 participantsVision Support forZinc
  77. A randomized, placebo-controlled, clinical trial of high-dose supplementation with vitamins C and E, beta carotene, and zinc for age-related macular degeneration and vision loss: AREDS report no. 8.
    Age-Related Eye Disease Study Research Group · Archives of ophthalmology (Chicago, Ill. : 1960) · 2001
    Randomized trial3,640 participantsVision Support forZinc
  78. Effect of vitamin A and zinc supplementation on the nutriture of children in Northeast Thailand.
    Udomkesmalee E; Dhanamitta S; Sirisinha S; Charoenkiatkul S; Tuntipopipat S; Banjong O; Rojroongwasinkul N; Kramer TR; Smith JC · The American journal of clinical nutrition · 1992
    Randomized trial133 participantsVision Support forZinc