EVIDENCE-BASED SUPPLEMENT SCORING
8.5/10
TOP TIER

Confidence: 70%

Physician's CHOICE KSM-66 Ashwagandha Root Powder Extract 1,000mg - Organic - with Black Pepper for Maximum Absorption - 5% Withanolides - Stress, Mood & Athletic Support - 60 Vegan Capsules

Physician's CHOICE KSM-66 Ashwagandha Root Powder Extract 1,000mg - Organic - with Black Pepper for Maximum Absorption - 5% Withanolides - Stress, Mood & Athletic Support - 60 Vegan Capsules

B07S76M4D5

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Decision summary

CONSIDERTOP TIER

A strong option overall. Its main value comes from excipient quality, but the listed weaknesses are still worth checking…

Best for

People looking for a strong all-around option with minimal compromises.

Consider another option if

You care a lot about label clarity and want fewer unknowns.

Score breakdown

Tap a module to see what it measures. A 0 can reflect missing disclosure, not just a negative result.

Dosage quality

8.7/10

Strong dosing for the intended goal

Checks whether labeled ingredient amounts fall within clinically studied ranges (not just regulatory minimums). Low/0 can reflect under-dosing or missing amounts (e.g., proprietary blends).

Score summary

Black-pepper: dose within clinically studied range (evidence B). The main limitation is that ashwagandha: standardization missing — withanolides — expected standardization: 5.0 % (-2).

Strengths

Black-pepper: dose within clinically studied range (evidence B)

Weaknesses

Ashwagandha: standardization missing — withanolides — expected standardization: 5.0 % (-2)
Black-pepper: standardization missing — piperine — expected standardization: 95.0 % (-2)
Serving size or servings_per_container missing (-2)

Final verdict

A strong option overall. Its main value comes from excipient quality, but the listed weaknesses are still worth checking before buying.

Ingredient Analysis & Evidence

A closer look at the main ingredients, how they influence the score, and the supporting evidence when available. Tap any ingredient to expand.

ℹ Dose is within established clinical ranges, but lacks direct studies

Dose is within the optimal/effective range. Strong contributor: Dose is strong and within effective ranges. The declared form is acceptable, but not among the best-absorbed options.

Clinical dosing guidance

Based on established dosing ranges used in clinical practice.

Min effective: 5 mgOptimal: 10 mgUpper: 20 mgGrade: B

✔ Clinically effective dose with strong supporting evidence

Dose is within the optimal/effective range. Solid but not a standout: Dose is directionally useful, but not a standout strength. The declared form is acceptable, but not among the best-absorbed options.

Scientific evidence

RCT

Wankhede et al. RCT ashwagandha and testosterone levels

American Journal of Men's Health • 2015

PMID: 31991540.0

RCT

Chandrasekhar et al. RCT ashwagandha and cortisol in stressed adults

Indian Journal of Psychological Medicine • 2012

PMID: 23439798.0

Physician's CHOICE KSM-66 Ashwagandha Root Powder Extract 1,000mg - Organic - with Black Pepper for Maximum Absorption - 5% Withanolides - Stress, Mood & Athletic Support - 60 Vegan Capsules

Physician's CHOICE KSM-66 Ashwagandha Root Powder Extract 1,000mg - Organic - with Black Pepper for Maximum Absorption - 5% Withanolides - Stress, Mood & Athletic Support - 60 Vegan Capsules

Warnings & notes

Important label or formulation details that may affect how this product should be interpreted.

i

Some label details are missing or unclear

Incomplete disclosure makes the product harder to evaluate confidently.

Info

There is a formulation caveat worth noting

Product name or brand not detected (-1)

Note

Methodology

Read our methodology overview to understand how SuppScoreLab combines multiple scientific dimensions into one practical score.

View methodology →

This evaluation is based on the product label and declared Supplement Facts available at review time. It does not verify laboratory-tested composition, purity, or batch-level quality. This content is educational and not medical advice. Consult a qualified healthcare professional for personal health decisions. Affiliate disclosure: SuppScoreLab may earn a commission from qualifying Amazon links.

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