Product Image

Ashwagandha

Pure Encapsulations
4.8
★ ★ ★ ★ ★
(124 ratings)
Ashwagandha 500 mg
Product Image
Score83
A focused 500 mg ashwagandha capsule with the label identifies withanolides as the relevant marker. the actual withanolide percentage is not shown in the supplied details.
How scoring works
Quantity:120 Capsule(s) • (120 servings)
Goals:
Sleep Support
Stress Relief
Mood Support
Fitness
Testosterone Support
Muscle Gain
Productivity Boost
Cognitive Support
Brain Health

Score 83

A focused 500 mg ashwagandha capsule with the label identifies withanolides as the relevant marker. the actual withanolide percentage is not shown in the supplied details.
How scoring works
$52.00($0.43 per serving)
Pure Formulas
$ 52.00
Vitacost
$ 52.00
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Analysis

500 mg root extract gives the capsule a clear, narrow purpose. The simple active formula is easy to coordinate with other supplements.

The label identifies withanolides as the relevant marker. The actual withanolide percentage is not shown in the supplied details.

The large once-daily supply is convenient, although value is only moderate. Ashwagandha is most directly relevant to stress and sleep support, while the many fitness, testosterone, cognition, and muscle goals are less certain.

Who is it for
  • Adults seeking simple ashwagandha support
  • People who prefer capsules
Best for
  • Stress support
  • Calm evening routines
  • Single-herb supplementation

Pros

  • Provides 500 mg ashwagandha
  • Simple active formula
  • The large once-daily supply is convenient, although value is only moderate.

Cons

  • The actual withanolide percentage is not shown in the supplied details.
  • Not tailored to every listed goal
  • Non-active ingredients are not supplied

Warnings

  • Ashwagandha may cause drowsiness or stomach upset and can add to sedative effects.
  • Avoid during pregnancy, and use extra care with thyroid conditions or thyroid medicine.
  • Stop use and seek care for jaundice, dark urine, or severe abdominal symptoms because rare liver injury has been reported.

Nutrient quality

90 Highest impact

A withanolide-identified root extract supports a focused and well-characterized formula. The daily amount is meaningful, although the withanolide percentage is not shown.

Ingredient transparency

86 Highest impact

Active ingredients and their amounts are individually disclosed without a hidden blend. Complete intake directions and a full non-active ingredient list are not supplied.

Customer satisfaction

70 High impact

The aggregate rating is strong and is supported by a useful but limited review sample. No review comments are supplied, so recurring complaints and purpose fit cannot be checked directly.

Value for money

81 Highest impact

The effective serving offers good value relative to the formula quality. A focused ingredient list supports efficient spending.

Report analysis

Goals

Sleep Support
Sleep Support
Impact
Highest effect
A+ Goal FitA- Strength of SupportA CoverageA+ Formula Quality

Ashwagandha from Pure Encapsulations covers circadian regulation, nervous-system relaxation, mineral or physical relaxation support, producing strong alignment with sleep support.

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

Study evidence
Ashwagandha Supportive 18 studies
Stress Relief
Stress Relief
Impact
Highest effect
A- Goal FitA Strength of SupportC+ CoverageA+ Formula Quality
Ashwagandha · 500 mg

Pure Encapsulations Ashwagandha has a supplied customer average of 4.80 from 116 reviews, and no finished-product certification is established in the supplied research.

500 mg of withanolide-bearing root extract is the central stress-support feature, while ashwagandha can cause drowsiness or stomach upset and warrants caution during pregnancy and with relevant thyroid, autoimmune, liver, or medication concerns.

Study evidence
Ashwagandha Supportive 47 studies
Mood Support
Mood Support
Impact
Highest effect
B- Goal FitA Strength of SupportC- CoverageA Formula Quality
Ashwagandha · 500 mg

Ashwagandha appears best understood as a well-dosed standardized stress-response active, and the configured scores reflect that degree of Mood Support alignment.

Supplied customer feedback averages 4.80 from 116 reviews; nCCIH notes thyroid interactions and rare liver injury with ashwagandha, so individual risk review remains important.

Study evidence
Ashwagandha Supportive 29 studies
Fitness
Fitness
Impact
High effect
B- Goal FitA- Strength of SupportC- CoverageA Formula Quality
Ashwagandha · 500 mg

Ashwagandha delivers 500 mg standardized root extract and appears well aligned with recovery support, while supplied reviews average 4.80 from a smaller sample of 116.

Manufacturer-reported solvent, pesticide, heavy-metal, and microbial testing supports quality confidence, though no named clinical extract or product-specific sport certification is stated.

Study evidence
Ashwagandha Supportive 23 studies
Testosterone Support
Testosterone Support
Impact
High effect
B Goal FitA- Strength of SupportD+ CoverageA+ Formula Quality
Ashwagandha · 500 mg

Ashwagandha is well aligned with Testosterone Support because its highlighted actives include withanolide-standardized ashwagandha at 500 mg; evidence for the formula as a whole is moderate.

Customer feedback averages 4.80 out of 5 across 116 reviews; ashwagandha warrants caution during pregnancy and with thyroid, liver, or interacting-medication concerns.

Study evidence
Ashwagandha Supportive 17 studies
Muscle Gain
Muscle Gain
Impact
High effect
B Goal FitA- Strength of SupportC CoverageA- Formula Quality

Ashwagandha aligns with Muscle Gain mainly through Ashwagandha, while the supplied collection analyses average 78.8 and supplied customer feedback is 4.80 from 116 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 10 studies

Ingredients

IngredientAmount per serving
Ashwagandha root extract (Withanolides)
 500 mg
Gluten Free Adults 18–50 Women
Report overview
Ashwagandha (Withanolides) · 500 mg OverallScore79
C Active Ingredient Quality & BioavailabilityA Dose, Safety & Label TransparencyB+ Value
+2

Ashwagandha discloses 500 mg ashwagandha per serving and has a 4.80 average from 116 reviews. The manufacturer reports solvent, pesticide, heavy-metal, and microbial testing and a minimal excipient profile, while the customer sample is smaller at 116 reviews.

View ingredientView products
Loading alternative details
87 Performance

Ashwagandha KSM-66 600 mg

NutraBio
<p>Ashwagandha KSM-66 600 mg provides 600 mg of KSM-66 root extract with withanolides identified, making it a stronger ingredient-led option than Ashwagandha. The substantial, well-defined dose gives it stronger ingredient-quality evidence while keeping the formula focused.</p>
86 Performance

Ashwagandha Sensoril

Natural Factors Stress-Relax
<p>Ashwagandha Sensoril provides 250 mg of Sensoril with oligosaccharides, withanolide aglycone, and withanolide glycosides identified, making it a stronger ingredient-led option than Ashwagandha. The detailed extract description improves potency transparency and supports a strong ashwagandha comparison.</p>
86 Performance

Anxiety & Stress Relief

Nature's Bounty
<p>Anxiety & Stress Relief provides 600 mg of withanolide-identified ashwagandha extract plus 200 mg of theanine, making it a stronger ingredient-led option than Ashwagandha. Theanine broadens the stress-support approach, while the clearly identified ashwagandha remains the main active.</p>
87 Budget

Standardized Extract Ashwagandha 450 mg

NOW
<p>Standardized Extract Ashwagandha 450 mg supplies a 450 mg ashwagandha extract identified by total withanolides at a lower serving cost than Ashwagandha. The standardized single-active formula is easier to assess than an unmarked powder and carries strong quality and value evidence.</p>
86 Budget

Optimized Ashwagandha

Life Extension
<p>Optimized Ashwagandha supplies 125 mg of Sensoril with its oligosaccharide and withanolide components identified at a lower serving cost than Ashwagandha. The named extract provides useful potency context, although the amount is lower than in many high-dose formulas.</p>
86 Budget

Sensoril 125 mg

Swanson Ultra
<p>Sensoril 125 mg supplies 125 mg of Sensoril with oligosaccharides and withanolide conjugates identified at a lower serving cost than Ashwagandha. The focused label and named extract support consistent comparison, with dose size remaining the main trade-off.</p>
87 Value

Ultimate Ashwagandha 250 mg KSM-66

Swanson
<p>Ultimate Ashwagandha 250 mg KSM-66 balances quality and cost with 250 mg of KSM-66 ashwagandha extract. The named extract, concise formula, and favorable value evidence make it an efficient alternative, though no marker percentage is shown. Compared with Ashwagandha, its quality-to-cost balance is more favorable.</p>
86 Value

Ashwagandha

Jarrow Formulas
<p>Ashwagandha balances quality and cost with 300 mg of ashwagandha extract in a single-active formula. The product combines strong quality and value evidence, but missing withanolide standardization limits potency comparison. Compared with Ashwagandha, its quality-to-cost balance is more favorable.</p>
85 Value

Ashwagandha Root Extract

Solgar
<p>Ashwagandha Root Extract balances quality and cost with 300 mg of standardized extract with withanolides plus 100 mg of root powder. The extract-and-powder combination adds useful identity and dose context while retaining favorable value. Compared with Ashwagandha, its quality-to-cost balance is more favorable.</p>
Report alternatives

Sources

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

  1. 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
  2. Dual impact of Ashwagandha: Significant cortisol reduction but no effects on perceived stress - A systematic review and meta-analysis.
    Albalawi AA · Nutrition and health · 2025
    Meta-analysis488 participants13 studies pooledStress Relief forAshwagandha
  3. 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
  4. 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 pooledSleep Support Mood Support forAshwagandha
  5. 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
  6. Effects of an 8-week high intensity interval training (HIIT) and ashwagandha supplementation on aerobic capacity, muscle oxygenation and haematological parameters in healthy men.
    Ewa J; Klusiewicz A; Rębiś K; Długołęcka B; Charmas M; Cieśliński I · Biology of sport · 2025
    Randomized trial33 participantsFitness forAshwagandha
  7. 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
  8. Effects of Root Extract of Ashwagandha (Withania somnifera) on Perception of Recovery and Muscle Strength in Female Athletes.
    Coope OC; Reales Salguero A; Spurr T; Páez Calvente A; Domenech Farre A; Jordán Fisas E; Lloyd B; Gooderick J; Abad Sangrà M; Roman-Viñas B · European journal of sport science · 2025
    Randomized trial30 participantsMuscle Gain forAshwagandha
  9. 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 participantsCognitive Support Brain Health forAshwagandha
  10. Withania somnifera and Centella asiatica Extracts Ameliorate Behavioral Deficits in an In Vivo Drosophila melanogaster Model of Oxidative Stress.
    Cabey K; Long DM; Law A; Gray NE; McClure C; Caruso M; Lak P; Wright KM; Stevens JF; Maier CS; Soumyanath A; Kretzschmar D · Antioxidants (Basel, Switzerland) · 2022
    Observational studyCognitive Support forAshwagandha
  11. Hormonal Modulation with Withania somnifera: Systematic Review and Meta-Analysis of Randomized-controlled Trials.
    Fornalik M; Malkiewicz A; Adamczak D; Nawrocki F; Zielinska A; Mondal SA · Planta medica · 2026
    Meta-analysis1,706 participants23 studies pooledTestosterone Support forAshwagandha
  12. Effect of an ashwagandha (Withania Somnifera) root extract on climacteric symptoms in women during perimenopause: A randomized, double-blind, placebo-controlled study.
    Gopal S; Ajgaonkar A; Kanchi P; Kaundinya A; Thakare V; Chauhan S; Langade D · The journal of obstetrics and gynaecology research · 2021
    Randomized trial100 participantsTestosterone Support forAshwagandha
  13. 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
  14. 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
  15. 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
  16. 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
  17. 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
  18. 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
  19. 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
  20. 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
  21. Enhancing healthspan with Ashwagandha (Withania somnifera): a comprehensive review of its multifaceted geroprotective benefits.
    Vittal M; Vinciguerra M · Biogerontology · 2025
    Narrative reviewEnergy forAshwagandha
  22. 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
  23. 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
  24. 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
  25. 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
  26. 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
  27. 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
  28. 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
  29. 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
  30. 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
  31. 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
  32. 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
  33. 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
  34. 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
  35. 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
  36. 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
  37. 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
  38. 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
  39. 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
  40. 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
  41. 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
  42. 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