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Ashwagandha 450 mg

Swanson
4.7
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(62311 ratings)
Ashwagandha 900 mg
Product Image
Score76
The title says 450 mg while the ingredient data repeat 900 mg twice, creating a major dose conflict. Plant part, extract status, and withanolide standardization are also absent, so both identity and potency remain uncertain.
How scoring works
Quantity:100 Capsule(s) • (50 servings)
Goals:

Score 76

The title says 450 mg while the ingredient data repeat 900 mg twice, creating a major dose conflict. Plant part, extract status, and withanolide standardization are also absent, so both identity and potency remain uncertain.
How scoring works
$7.79($0.15 per serving)
iHerb
$ 11.09
iHerb
$ 11.09
Amazon
$ 7.79
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Analysis

The serving provides ashwagandha reported as two separate 900 mg entries. The title says 450 mg while the ingredient data repeat 900 mg twice, creating a major dose conflict.

Ashwagandha is commonly used to support stress-related well-being and may also fit sleep or mood goals. A low recurring cost and 50 servings are attractive, but the actual daily amount cannot be established from the supplied label.

Plant part, extract status, and withanolide standardization are also absent, so both identity and potency remain uncertain. Safety considerations are important because the herb may cause drowsiness or stomach upset and can interact with several health conditions and medicines.

Who is it for
  • Price-conscious users willing to verify the package
  • Adults who prefer basic ashwagandha capsules
Best for
  • Use only after confirming the current label
  • Low-cost whole-herb supplementation

Pros

  • Low recurring serving cost
  • Provides 50 servings
  • Focused ashwagandha-only concept

Cons

  • Title and ingredient amounts conflict
  • Duplicate 900 mg entries are unexplained
  • No standardization or plant part is stated

Warnings

  • Verify the exact serving dose on the package because the supplied title and two ingredient entries conflict.
  • Ashwagandha may cause drowsiness or stomach upset; use extra care before driving until individual tolerance is known.
  • Rare liver-injury reports make new jaundice, dark urine, or unusual fatigue reasons to stop use and seek medical advice.
  • Ashwagandha may be unsuitable during pregnancy or with thyroid, sedative, immune-suppressing, blood-sugar, or blood-pressure medicines.

Nutrient quality

77 High impact

A substantial ashwagandha amount supports the intended use. Missing standardization and duplicated totals reduce quality confidence.

.

Ingredient transparency

65 Moderate impact

The label provides an ashwagandha amount. Duplicate totals and missing form detail make the dose difficult to interpret.

.

Customer satisfaction

71 High impact

The supplied average rating is very strong. No specific review comments were supplied, so repeated negative experiences cannot be assessed.

.

Value for money

94 Highest impact

A low serving cost and substantial listed amount provide strong value. Duplicate totals and unspecified potency are meaningful trade-offs.

.
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Goals

Testosterone Support
Testosterone Support
Impact
Moderate effect
B Goal FitD+ Strength of SupportD CoverageA- Formula Quality
Ashwagandha · 900 mg

Ashwagandha directly supports the stress-management side of testosterone support, and the stated daily amount may be useful. Human evidence is promising, but the label does not identify the plant part, extract ratio, or withanolide level.

The single-ingredient design is focused and avoids filler, yet it does not cover foundational nutrient or free-hormone pathways. Potency uncertainty keeps it from being a more dependable choice for this goal.

Study evidence
Ashwagandha Supportive 17 studies
Stress Relief
Stress Relief
Impact
Moderate effect
A- Goal FitF Strength of SupportD- CoverageB+ Formula Quality
Ashwagandha · 900 mg

Ashwagandha is directly relevant to stress relief because it may support the body's adaptation to ongoing pressure and help moderate the stress response. Human evidence is reasonably supportive, though benefits depend on the extract and dose used.

The daily amount is disclosed, but the label does not identify the plant part, extract type, or withanolide standardization. A focused single-ingredient formula avoids unnecessary additions, yet its uncertain potency makes the likely stress-relief contribution hard to predict.

Study evidence
Ashwagandha Supportive 47 studies
Mood Support
Mood Support
Impact
Moderate effect
B- Goal FitD Strength of SupportF CoverageB+ Formula Quality
Ashwagandha · 900 mg

Ashwagandha may support a steadier mood by helping the body manage stress, but it does not directly supply neurotransmitter precursors or broad brain nutrients. Human evidence is more consistent for stress reduction than for mood regulation itself.

The daily amount is clearly listed, yet the label omits the plant part, extract type, and withanolide standardization. A focused formula avoids unnecessary ingredients, but unclear potency limits confidence in how reliably it may affect mood.

Study evidence
Ashwagandha Supportive 29 studies
Fitness
Fitness
Impact
Moderate effect
C Goal FitD- Strength of SupportF CoverageB+ Formula Quality
Ashwagandha · 900 mg

Ashwagandha may support fitness indirectly through stress adaptation and recovery rather than through a direct power or endurance pathway. Evidence for athletic benefits is promising but less established than for core performance ingredients such as creatine.

The daily amount is clearly stated, yet the label does not identify the plant part, extract type, or standardization. A focused single-ingredient formula avoids unnecessary padding, but the unclear potency limits confidence that it will make a meaningful training contribution.

Study evidence
Ashwagandha Supportive 23 studies
Cognitive Support
Cognitive Support
Impact
Moderate effect
C- Goal FitD- Strength of SupportF CoverageB+ Formula Quality
Ashwagandha · 900 mg

Ashwagandha may support cognition indirectly by easing stress-related mental fatigue and brain fog. The clearly stated daily amount gives the formula a plausible foundation, but the lack of a standardized extract limits confidence in its strength.

The single-ingredient approach is focused and free from obvious padding. However, it covers only the stress pathway and does not provide direct support for memory, neurotransmitters, or cerebral circulation.

Study evidence
Ashwagandha Supportive 17 studies
General Health
General Health
Impact
Moderate effect
C Goal FitD- Strength of SupportF CoverageB- Formula Quality
Ashwagandha · 900 mg

Ashwagandha may support general well-being through stress adaptation, but it does not fill common nutrient gaps or cover several foundational health systems. Evidence is more relevant to stress-related outcomes than to broad long-term health maintenance.

The daily amount is clearly disclosed, yet the label leaves the plant part, extract type, and withanolide content unknown. A simple single-ingredient formula avoids unnecessary padding, but its narrow coverage and uncertain potency limit its value as a general health foundation.

Study evidence
Ashwagandha Supportive 31 studies

Ingredients

IngredientAmount per serving
Ashwagandha
900 mg
Adults 18–50
Report overview
Ashwagandha · 900 mg OverallScore40
F Active Ingredient Quality & BioavailabilityC+ Dose, Safety & Label TransparencyD- Value

The label provides a clearly stated daily amount but does not identify the plant part or a standardized extract, leaving potency and extract quality uncertain. The daily amount falls just below the usual range for plain root powder, and no absorption aid is included. Its low cost offers basic value, though the limited ingredient detail makes effectiveness harder to judge.

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 identified extract or withanolide form provides clearer potency information than the original's unstandardized ingredient.</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 identified extract or withanolide form provides clearer potency information than the original's unstandardized ingredient.</p>
86 Budget

Optimized Ashwagandha

Life Extension
<p>125 mg Sensoril ashwagandha extract retains the main ashwagandha focus at a lower serving cost. The identified extract or withanolide form provides clearer potency information than the original's unstandardized ingredient.</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 identified extract or withanolide form provides clearer potency information than the original's unstandardized ingredient.</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 identified extract or withanolide form provides clearer potency information than the original's unstandardized ingredient.</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 identified extract or withanolide form provides clearer potency information than the original's unstandardized ingredient.</p>
86 Value

Ashwagandha

Jarrow Formulas
<p>300 mg ashwagandha combines a well-defined ashwagandha serving with favorable value evidence. The lighter listed amount may suit cautious use, though it provides less ashwagandha per serving 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. 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 General Health forAshwagandha
  2. 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
  3. 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 participantsStress Relief Mood Support forAshwagandha
  4. 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
  5. 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
  6. 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 participantsMood Support Cognitive Support forAshwagandha
  7. 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 forAshwagandha
  8. 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 participantsCognitive Support forAshwagandha
  9. 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
  10. 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
  11. 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
  12. 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 General Health forAshwagandha
  13. 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 General Health forAshwagandha
  14. 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 Testosterone Support forAshwagandha
  15. 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
  16. Withania somnifera (L.) Dunal as Add-On Therapy for COPD Patients: A Randomized, Placebo-Controlled, Double-Blind Study.
    Singh P; Salman KA; Shameem M; Warsi MS · Frontiers in pharmacology · 2022
    Randomized trial150 participantsGeneral Health forAshwagandha
  17. 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 pooledGeneral Health forAshwagandha
  18. 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 participantsMood Support forAshwagandha
  19. 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
  20. 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
  21. 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
  22. 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 participantsStress Relief forAshwagandha
  23. 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
  24. 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
  25. 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
  26. 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
  27. 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