Product Image

Ashwagandha Root Extract

Solgar
4.6
★ ★ ★ ★ ★
(2840 ratings)
Ashwagandha 300 mg
Product Image
Score85
The formula combines marker-standardized extract with whole root powder for both potency and broader plant material. The exact withanolide percentage and extract brand are not identified.
How scoring works
Quantity:60 Capsule(s) • (60 servings)
Goals:
Mood Support
Stress Relief
Brain Health
Cognitive Support
Testosterone Support
Fitness
Sleep Support
Muscle Gain
Productivity Boost
Energy

Score 85

The formula combines marker-standardized extract with whole root powder for both potency and broader plant material. The exact withanolide percentage and extract brand are not identified.
How scoring works
$13.74($0.22 per serving)
Walmart
$ 14.54
Pure Formulas
$ 14.54
Vitacost
$ 14.79
Daily Vita
$ 14.54
Amazon
$ 14.54
iHerb
$ 13.74
Report prices

Analysis

300 mg standardized extract plus 100 mg root powder supplies 400 mg in one capsule. The formula combines marker-standardized extract with whole root powder for both potency and broader plant material.

Its amount is well aligned with stress, mood, sleep, and cognitive-support routines. A focused one-capsule serving and reasonable cost support straightforward daily use.

The exact withanolide percentage and extract brand are not identified. Start with the lowest practical serving and judge tolerance before making it a regular part of the routine.

Who is it for
  • Adults seeking standardized ashwagandha
  • People who want extract plus whole root
  • Users focused on stress and cognitive support
Best for
  • Balanced extract-and-root use
  • Daily stress routines
  • One-capsule convenience

Pros

  • Includes standardized extract
  • Adds whole root powder
  • Clear 400 mg combined amount
  • One-capsule serving

Cons

  • Withanolide percentage not supplied
  • No named branded extract
  • Whole powder contribution is smaller than the extract

Warnings

  • Ashwagandha may cause drowsiness or stomach upset; avoid combining it with sedatives until individual effects are known.
  • Avoid ashwagandha during pregnancy, and seek guidance during breastfeeding because safety is not established.
  • Ashwagandha may affect thyroid function and can complicate dosing of thyroid medicines.
  • Stop use and seek care for jaundice, dark urine, or severe fatigue because rare liver injury has been reported with ashwagandha.

Nutrient quality

90 Highest impact

A withanolide-standardized extract offers useful form assurance, though no branded source or marker percentage is given. The extract-and-root design is well dosed, with incomplete marker strength as the main limitation.

Ingredient transparency

85 Highest impact

Extract and root-powder amounts are stated separately. No proprietary blend hides the listed active doses.

Customer satisfaction

70 High impact

The supplied average is positive, with very large response volume. Complaint patterns and purpose-related experiences are not supplied.

Value for money

94 Highest impact

Formula quality appears strong for the asking price. Each serving offers fair value for the active dose supplied.

Report analysis

Goals

Mood Support
Mood Support
Impact
Highest effect
B+ Goal FitA Strength of SupportA CoverageA Formula Quality
Ashwagandha · 100 mg

Ashwagandha Root Extract from Solgar covers neurotransmitter support, stress-response or HPA-axis support, structural or anti-inflammatory support, producing strong alignment with mood support.

Collection-specific evidence indicates strong dose adequacy and strong form or disclosure quality, with the main limitation being variable evidence across the included actives.

Study evidence
Ashwagandha Supportive 29 studies
Stress Relief
Stress Relief
Impact
Highest effect
A- Goal FitA- Strength of SupportC- CoverageA+ Formula Quality
Ashwagandha · 100 mg

Ashwagandha Root Extract provides 300 mg standardized withanolide ashwagandha and has 2,610 reviews averaging 4.58, indicating favorable customer satisfaction. NSF distinguishes facility GMP oversight from finished-product certification, so a current product-specific quality mark should be checked rather than assumed.

NIH notes that ashwagandha can cause drowsiness or stomach upset and may affect thyroid function or interact with medicines, so individual safety fit matters.

Study evidence
Ashwagandha Supportive 47 studies
Brain Health
Brain Health
Impact
Highest effect
B Goal FitA Strength of SupportC+ CoverageA- Formula Quality
Ashwagandha · 100 mg

Ashwagandha Root Extract aligns with Brain Health mainly through Ashwagandha, while the supplied collection analyses average 85.6 and supplied customer feedback is 4.58 from 2,610 reviews.

Its strongest feature is dose adequacy, while coverage remains intentionally narrow; it appears better suited to a targeted role within a broader routine.

Study evidence
Ashwagandha Supportive 12 studies
Cognitive Support
Cognitive Support
Impact
Highest effect
B Goal FitA Strength of SupportC+ CoverageA- Formula Quality
Ashwagandha · 100 mg

Ashwagandha Root Extract aligns with Cognitive Support mainly through Ashwagandha, while the supplied collection analyses average 85.6 and supplied customer feedback is 4.58 from 2,610 reviews.

Its strongest feature is dose adequacy, while coverage remains intentionally narrow; it appears better suited to a targeted role within a broader routine.

Study evidence
Ashwagandha Supportive 17 studies
Testosterone Support
Testosterone Support
Impact
High effect
C+ Goal FitA- Strength of SupportC- CoverageA Formula Quality
Ashwagandha · 100 mg

Ashwagandha Root Extract appears best understood as a standardized ashwagandha stress-modulation pathway, and the configured scores reflect that degree of Testosterone Support alignment.

Supplied customer feedback averages 4.58 from 2,610 reviews; nCCIH advises caution with thyroid conditions and hormone-sensitive prostate cancer and notes rare liver injury.

Study evidence
Ashwagandha Supportive 17 studies
Fitness
Fitness
Impact
High effect
C+ Goal FitA- Strength of SupportC- CoverageB+ Formula Quality
Ashwagandha · 100 mg

Ashwagandha Root Extract uses a marker-standardized ashwagandha extract and may support stress adaptation, recovery, and selected performance outcomes, although its fitness role is less direct than core ergogenic ingredients.

The disclosed dose and formula structure support a strong contribution, while evidence and pathway coverage remain the main constraints.

Study evidence
Ashwagandha Supportive 23 studies

Ingredients

IngredientAmount per serving
standardized Ashwagandha extract (Withanolides)
 300 mg
Ashwagandha powder
100 mg
Gluten Free Adults 18–50 Vegan Kosher Dairy Free Sugar Free Vegetarian
Report overview
Ashwagandha (Withanolides) · 300 mg OverallScore86
C Active Ingredient Quality & BioavailabilityA+ Dose, Safety & Label TransparencyA+ Value
+2

Reported customer feedback averages 4.58 out of 5 across 2,610 reviews. A marker-standardized extract provides good form transparency, though no studied brand is named; the disclosed amount aligns with the applicable rubric target, while the exact milligram quantity is transparent. Ashwagandha may affect thyroid function and has rare liver-injury reports, so pregnancy, thyroid or liver concerns, and potentially interacting medicines warrant clinician guidance.

View ingredientView products
Loading alternative details
87 Performance

Ashwagandha KSM-66 600 mg

NutraBio
<p>Ingredient quality is better supported by 600 mg KSM-66 ashwagandha root extract, giving this option a clear ashwagandha-centered rationale. The larger listed ashwagandha amount may suit someone seeking a more substantial serving, while individual tolerance still matters.</p>
82 Performance

Sleep Well Berry Flavored

Nature's Way
<p>Ingredient quality is better supported by 125 mg Sensoril ashwagandha extract, giving this option a clear ashwagandha-centered rationale. Magnesium citrate and melatonin add direct nighttime support, but melatonin makes the formula less suitable for daytime use.</p>
86 Performance

Anxiety & Stress Relief

Nature's Bounty
<p>Ingredient quality is better supported by 600 mg ashwagandha extract with a named withanolide form, giving this option a clear ashwagandha-centered rationale. L-theanine adds a second stress-oriented ingredient, though the broader formula may not suit someone seeking ashwagandha alone.</p>
87 Budget

Standardized Extract Ashwagandha 450 mg

NOW
<p>450 mg ashwagandha extract with a named withanolide form retains the main ashwagandha focus at a lower serving cost. The larger listed ashwagandha amount may suit someone seeking a more substantial serving, while individual tolerance still matters.</p>
86 Budget

Optimized Ashwagandha

Life Extension
<p>125 mg Sensoril ashwagandha extract retains the main ashwagandha focus at a lower serving cost. The lighter listed amount may suit cautious use, though it provides less ashwagandha per serving than the original.</p>
86 Budget

Sensoril 125 mg

Swanson Ultra
<p>125 mg Sensoril ashwagandha extract retains the main ashwagandha focus at a lower serving cost. The lighter listed amount may suit cautious use, though it provides less ashwagandha per serving than the original.</p>
87 Value

Standardized Extract Ashwagandha 450 mg

NOW
<p>450 mg ashwagandha extract with a named withanolide form combines a well-defined ashwagandha serving with favorable value evidence. The larger listed ashwagandha amount may suit someone seeking a more substantial serving, while individual tolerance still matters.</p>
86 Value

Ashwagandha Extract 450 mg

Swanson
<p>450 mg ashwagandha extract with a named withanolide form combines a well-defined ashwagandha serving with favorable value evidence. The larger listed ashwagandha amount may suit someone seeking a more substantial serving, while individual tolerance still matters.</p>
86 Value

Ashwagandha

Jarrow Formulas
<p>300 mg ashwagandha combines a well-defined ashwagandha serving with favorable value evidence. The label does not identify withanolide standardization, so the trade-off is less precise potency information than the original.</p>
Report alternatives

Sources

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

  1. Acute and Repeated Ashwagandha Supplementation Improves Markers of Cognitive Function and Mood.
    Leonard M; Dickerson B; Estes L; Gonzalez DE; Jenkins V; Johnson S; Xing D; Yoo C; Ko J; Purpura M; Jäger R; Faries M; Kephart W; Sowinski R; Rasmussen CJ; Kreider RB · Nutrients · 2024
    Randomized trial59 participantsBrain Health Cognitive Support Energy forAshwagandha
  2. Effect of ashwagandha (Withania somnifera) extract with Sominone (Somin-On™) to improve memory in adults with mild cognitive impairment: A randomized, double-blind, placebo-controlled study.
    Rai HP; Mishra DN · Journal of psychopharmacology (Oxford, England) · 2025
    Randomized trial40 participantsBrain Health Cognitive Support forAshwagandha
  3. Efficacy of Withania somnifera supplementation on adult's cognition and mood.
    Remenapp A; Coyle K; Orange T; Lynch T; Hooper D; Hooper S; Conway K; Hausenblas HA · Journal of Ayurveda and integrative medicine · 2022
    Randomized trial60 participantsBrain Health Cognitive Support Productivity Boost forAshwagandha
  4. A clinical assessment of the therapeutic effects of Ashwagandha root extract on cognitive performance, sleep, and fatigue in children aged 6-12 years.
    Saxena A; Lopresti A; Sharif M; Elon N; Suri R; Langade DK · Frontiers in nutrition · 2026
    Randomized trial85 participantsBrain Health forAshwagandha
  5. Efficacy and Safety of Ashwagandha Root Extract on Cognitive Functions in Healthy, Stressed Adults: A Randomized, Double-Blind, Placebo-Controlled Study.
    Gopukumar K; Thanawala S; Somepalli V; Rao TSS; Thamatam VB; Chauhan S · Evidence-based complementary and alternative medicine : eCAM · 2022
    Randomized trial130 participantsBrain Health Sleep Support Stress Relief forAshwagandha
  6. A standardized Ashwagandha root extract alleviates stress, anxiety, and improves quality of life in healthy adults by modulating stress hormones: Results from a randomized, double-blind, placebo-controlled study.
    Majeed M; Nagabhushanam K; Mundkur L · Medicine · 2023
    Randomized trial54 participantsCognitive Support forAshwagandha
  7. Efficacy and safety of ashwagandha root extract in children and adolescents with mild attention-deficit/hyperactivity disorder: a randomized, double-blind, placebo-controlled trial.
    Naik S; Muralidhar G; Rao BS; Agarwal S; Jain M · Journal of medicine and life · 2026
    Randomized trial58 participantsCognitive Support forAshwagandha
  8. Effects of multi-herb and ashwagandha root formulas on stress modulation: a randomized, double-blind, placebo-controlled clinical study.
    McKinney E; Stewart J; Kewalramani R; Singh S · Trials · 2026
    Randomized trial186 participantsEnergy Mood Support forAshwagandha
  9. Efficacy and Safety of Low-Dose Ashwagandha Supplementation on Exercise Endurance: A Randomized, Placebo-Controlled, Double-Blind, Clinical Trial.
    Prajapati H; Satia M; Shah D; Basera I; Shah T · Phytotherapy research : PTR · 2026
    Randomized trialEnergy forAshwagandha
  10. Enhancing healthspan with Ashwagandha (Withania somnifera): a comprehensive review of its multifaceted geroprotective benefits.
    Vittal M; Vinciguerra M · Biogerontology · 2025
    Narrative reviewEnergy forAshwagandha
  11. Safety and Efficacy of Ashwagandha Root Extract on Cognition, Energy and Mood Problems in Adults: Prospective, Randomized, Placebo-Controlled Study.
    Kale S; Lopresti A; Suri R; Garg N; Langade D · Journal of psychoactive drugs · 2026
    Randomized trial120 participantsEnergy Productivity Boost forAshwagandha
  12. Effects of an Aqueous Extract of Withania somnifera on Strength Training Adaptations and Recovery: The STAR Trial.
    Ziegenfuss TN; Kedia AW; Sandrock JE; Raub BJ; Kerksick CM; Lopez HL · Nutrients · 2019
    Randomized trial38 participantsFitness forAshwagandha
  13. Efficacy of Ashwagandha (Withania somnifera [L.] Dunal) in improving cardiorespiratory endurance in healthy athletic adults.
    Choudhary B; Shetty A; Langade DG · Ayu · 2016
    Randomized trial50 participantsFitness forAshwagandha
  14. Effects of Ashwagandha ( Withania somnifera) standardized root extract on physical endurance and VO 2max in healthy adults performing resistance training: An eight-week, prospective, randomized, double-blind, placebo-controlled study.
    Verma N; Gupta SK; Patil S; Tiwari S; Mishra AK · F1000Research · 2024
    Randomized trial80 participantsFitness Muscle Gain forAshwagandha
  15. Effects of Withania somnifera (L.) Dunal (Ashwagandha) on cognitive and physical function in adults: a systematic review and meta-analysis.
    Zhu X; Zeng Q; Lei Y; Xu D · Frontiers in pharmacology · 2026
    Meta-analysis1,249 participants20 studies pooledFitness Muscle Gain Testosterone Support forAshwagandha
  16. Effects of eight-week supplementation of Ashwagandha on cardiorespiratory endurance in elite Indian cyclists.
    Shenoy S; Chaskar U; Sandhu JS; Paadhi MM · Journal of Ayurveda and integrative medicine · 2013
    Randomized trial40 participantsFitness forAshwagandha
  17. A proprietary herbal extract of ashwagandha root for stress and anxiety in healthy adults: a randomized, double-blind, three-arm, placebo-controlled efficacy and safety study.
    West RE; Biswas A; Rao R; Tayade H; Ademola J · Journal of medicine and life · 2026
    Randomized trial141 participantsMood Support forAshwagandha
  18. Safety and efficacy of Withania somnifera for anxiety and insomnia: Systematic review and meta-analysis.
    Fatima K; Malik J; Muskan F; Raza G; Waseem A; Shahid H; Jaffery SF; Khan U; Zaheer MK; Shaikh Y; Rashid AM · Human psychopharmacology · 2024
    Meta-analysis254 participants5 studies pooledMood Support forAshwagandha
  19. A prospective, randomized double-blind, placebo-controlled study of safety and efficacy of a high-concentration full-spectrum extract of ashwagandha root in reducing stress and anxiety in adults.
    Chandrasekhar K; Kapoor J; Anishetty S · Indian journal of psychological medicine · 2013
    Randomized trial64 participantsMood Support Stress Relief forAshwagandha
  20. Medicinal herbs for the treatment of anxiety: A systematic review and network meta-analysis.
    Zhang W; Yan Y; Wu Y; Yang H; Zhu P; Yan F; Zhao R; Tian P; Wang T; Fan Q; Su Z · Pharmacological research · 2022
    Meta-analysis29 participants29 studies pooledMood Support forAshwagandha
  21. Ashwagandha Root Extract Stabilises Physiological Stress Responses in Male and Female Team Sports Athletes During Pre-Season Training.
    Coope OC; Otaegui E; Suárez M; Levington A; Abad-Sangrà M; Lloyd B; Spurr TJ; Roman-Viñas B · Nutrients · 2026
    Randomized trial56 participantsMuscle Gain forAshwagandha
  22. Evaluation of Withania somnifera (L.) Dunal (Ashwagandha) on Physical Performance, Biomarkers of Inflammation, and Muscle Status in Healthy Volunteers: A Randomized, Double-Blind, Placebo-Controlled Study.
    Raut A; Tripathi R; Marathe PA; Uchil DA; Agashe S; Rege N; Vaidya AB · Cureus · 2024
    Randomized trialMuscle Gain forAshwagandha
  23. Examining the effect of Withania somnifera supplementation on muscle strength and recovery: a randomized controlled trial.
    Wankhede S; Langade D; Joshi K; Sinha SR; Bhattacharyya S · Journal of the International Society of Sports Nutrition · 2016
    Randomized trial57 participantsMuscle Gain forAshwagandha
  24. Effect of Ashwagandha (Withania somnifera) extract on sleep: A systematic review and meta-analysis.
    Cheah KL; Norhayati MN; Husniati Yaacob L; Abdul Rahman R · PloS one · 2021
    Meta-analysis400 participants5 studies pooledProductivity Boost forAshwagandha
  25. Clinical evaluation of the pharmacological impact of ashwagandha root extract on sleep in healthy volunteers and insomnia patients: A double-blind, randomized, parallel-group, placebo-controlled study.
    Langade D; Thakare V; Kanchi S; Kelgane S · Journal of ethnopharmacology · 2021
    Randomized trial80 participantsProductivity Boost Sleep Support forAshwagandha
  26. Effect of standardized aqueous extract of Withania somnifera on tests of cognitive and psychomotor performance in healthy human participants.
    Pingali U; Pilli R; Fatima N · Pharmacognosy research · 2014
    Randomized trial20 participantsProductivity Boost forAshwagandha
  27. A randomized, double blind, placebo controlled study to evaluate the effects of ashwagandha (Withania somnifera) extract on sleep quality in healthy adults.
    Deshpande A; Irani N; Balkrishnan R; Benny IR · Sleep medicine · 2021
    Randomized trial150 participantsSleep Support forAshwagandha
  28. Efficacy and safety of Ashwagandha root extract sustained-release (AshwaSR) capsules in healthy adult, stressed subjects: A randomized, double-blind, placebo-controlled, parallel-group, 3-arm clinical trial.
    Thanawala S; Shah R; Alluri KV; Bhupathiraju K; Desomayanandanam P; Bhuvenendran A · Medicine · 2026
    Randomized trial135 participantsSleep Support forAshwagandha
  29. Efficacy and Safety of Ashwagandha (Withania somnifera) Root Extract in Insomnia and Anxiety: A Double-blind, Randomized, Placebo-controlled Study.
    Langade D; Kanchi S; Salve J; Debnath K; Ambegaokar D · Cureus · 2020
    Randomized trial60 participantsSleep Support forAshwagandha
  30. An investigation into the stress-relieving and pharmacological actions of an ashwagandha (Withania somnifera) extract: A randomized, double-blind, placebo-controlled study.
    Lopresti AL; Smith SJ; Malvi H; Kodgule R · Medicine · 2019
    Randomized trial60 participantsStress Relief forAshwagandha
  31. Shoden promotes Relief from stress and anxiety: A randomized, double-blind, placebo-controlled study on healthy subjects with high stress levels.
    Mishra DN; Kumar M · Heliyon · 2024
    Randomized trial60 participantsStress Relief forAshwagandha
  32. Adaptogenic and Anxiolytic Effects of Ashwagandha Root Extract in Healthy Adults: A Double-blind, Randomized, Placebo-controlled Clinical Study.
    Salve J; Pate S; Debnath K; Langade D · Cureus · 2020
    Randomized trial60 participantsStress Relief forAshwagandha
  33. Effect of standardized root extract of ashwagandha (Withania somnifera) on well-being and sexual performance in adult males: A randomized controlled trial.
    Chauhan S; Srivastava MK; Pathak AK · Health science reports · 2024
    Randomized trial50 participantsTestosterone Support forAshwagandha
  34. Examining the Effects of Herbs on Testosterone Concentrations in Men: A Systematic Review.
    Smith SJ; Lopresti AL; Teo SYM; Fairchild TJ · Advances in nutrition (Bethesda, Md.) · 2021
    Systematic review32 studies pooledTestosterone Support forAshwagandha
  35. Do "testosterone boosters" really increase serum total testosterone? A systematic review.
    Morgado A; Tsampoukas G; Sokolakis I; Schoentgen N; Urkmez A; Sarikaya S · International journal of impotence research · 2024
    Systematic review3 studies pooledTestosterone Support forAshwagandha
  36. Safety and Tolerability of Withania somnifera Root Extract in Healthy Male Participants: A Pilot Randomized, Double-Blind, Placebo-Controlled Clinical Trial.
    Vaidya N; Agarwal R; Kshirsagar P; Ganu G; Nagore D; Mehta A; Vora A; Nair S · Food science & nutrition · 2025
    Randomized trial40 participantsTestosterone Support forAshwagandha