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KSM-66 Ashwagandha Supplement

Adaptogen · Capsule · 60 portioner#1 / 7 in Adaptogen
8.2
Overall score · out of 10
8.2
Overall score · out of 10
Dose vs. studies8.0
Transparency9.0
Value9.7
Community7.5
Formulation5.0
Tier 3
Ingredient RCT (matching dose)
The ingredient was tested in an RCT at the same dose this product sells.
Redaktionellt score, paid $0 No affiliate link Tested by independent lab Public analysintyg Sample received: No
How we scored this product Show the full breakdown
Composite How this 8.2 is built. 0.55 × 8.0 + 0.20 × 9.0 + 0.10 × 9.7 + 0.10 × 7.5 + 0.05 × 5.0 = 8.2 out of 10. Säkerhet caps applied after. 8.2
8.2 composite
Dose vs. studies55%8.0
Transparency20%9.0
Value10%9.7
Community10%7.5
Formulation5%5.0

Bevisning gates dose: the evidence grade sets the ceiling, and the dose decides how much of that ceiling the product reaches. Value = inverse of price-per-trial-dose-day. Community = mean sentiment of external reviews. Säkerhet caps applied after weighting.

This score is our editorial judgment, not a scientific standard. We combine published evidence, dose, price, transparency, and consumer signals into one composite: this is our method, not a peer-reviewed clinical rating. A higher score means a product does better on the factors we weight, not that it is medically proven to work.

Read the full method →

Question 1

Does the molecule work?

The science behind each active ingredient, independent of which brand sells it.

The best-studied adaptogen for stress and sleep.

1 landmark RCT · US: Dietary supplement · EU: Food supplement (novel status in some countries)
Question 2

Is this bottle good?

The specific product: dose, price, transparency, and what buyers report.

Dose vs research
100% av studiedosen
Meets or exceeds the published effective dose
Cost at trial dose
$0.33/day at trial dose
What one effective daily dose actually costs
Transparency
9.0/10 · Public analysintyg (quality: not assessed)
Independent batch testing confirmed
Consumer signals
No consumer signals collected yet
Operational signal only, never used as clinical evidence
Question 3

What's the catch?

Säkerhet flags, transparency gaps, dosing concerns, and recurring buyer complaints.

Säkerhet signals
Drug interaction risk — ashwagandha
maj potentiate thyroid hormone replacement (levothyroxine), raising risk of hyperthyroid symptoms; caution advised with sedatives, immunosuppressants, and blood sugar/blood pressure medications due to additive effects. Avoid in patients with cirrhosis or advanced chronic liver disease.
Läs mer
No major red flags
Public analysintyg, tested by independent lab, dose within range
No safety, transparency, or dose concerns detected at this time.
Redaktionellt verdict

Quick verdict

8.2 / 10
Best for
Full trial dose, Public analysintyg, Budget-friendly
Avoid if
No major red flags
Full-dose status
Meets trial dose
Pris/month
$10
COA status
Public
Biggest caveat
No significant caveats at this time.
Nearest alternatives

The numbers

Pris
$20
per bottle · 60 portioner
Dose vs. research
Överensstämmer med studier 100%
of published effective dose
$ / day at studied dose
$0.33
what one effective daily dose costs
$ / g active
$0.55
per gram of active substance
Independently checked

Data verification

Pris
$20
Verified n/a
Dose
100% av studiedosen
Verified n/a
COA status
Public
Verified n/a
Bevisning grade
B
Per-ingredient breakdown
BAshwagandha
Verified n/a

All product data is checked against original sources. Prices, doses, and testing status are updated when product pages change. Bevisning grades are reviewed when new human RCTs are published. Read how we verify.

What's inside

Ingredient
Dose in this product
Trial dose
Bevisning
Ashwagandha
The best-studied adaptogen for stress and sleep.
600.0 mg 100% av studiedosen
600 mg

Consumer signals

Consumer signals gathered from 2 platforms.

Low confidence, small sample

Consumer sentiment compiled from 2 public sources (Examine.com, YouTube). Small sample size, treat as directional only.

1 threads discussed · positive sentiment

PraiseA YouTube reviewer covering Double Wood's KSM-66 Ashwagandha says they felt more balanced and less stressed after a few days and calls it...

Compiled from a YouTube reviewer listing located during manual research; not independently re-verified against the live page at build time.

mixed sentiment

ThemesExamine's ashwagandha page rates the evidence for lowering cortisol and reducing stress and anxiety highly. Other claimed benefits like b...

Compiled from a Examine.com listing located during manual research; not independently re-verified against the live page at build time.

These are consumer sentiment signals. They do not measure whether the product actually works. See our evidence section for that.

What others say (unverified)

We aggregated external reviews. We didn't check their methodology. None of them are paid placements from us, but we can't guarantee the sources themselves received no product.

YouTube reviewer
positive

A YouTube reviewer covering Double Wood's KSM-66 Ashwagandha says they felt more balanced and less stressed after a few days and calls it a good pick for stress and sleep support. The video is disclosed as sponsored content.

Read source → Unverified · we received no payment for this listing
Examine.com
mixed

Examine's ashwagandha page rates the evidence for lowering cortisol and reducing stress and anxiety highly. Other claimed benefits like body composition sit on more mixed evidence, and study doses range widely from 120 mg to 12,000 mg daily.

Read source → Unverified · we received no payment for this listing
Bevisning

Research behind this product

The studies that established the trial dose and evidence grade for each active ingredient in this product. Click through to read the original paper.

What we could not verify

We list this openly. If a claim isn't backed by a source we can trace, we'd rather flag it than repeat it.

  • Trustpilot aggregator
    3.8/5169 reviews

    This is a brand-level customer-service profile for doublewood; it does not isolate KSM-66 Ashwagandha Supplement.

    verified 2026-08-07Open source →
  • Reddit r/Nootropics community forum
    mixed sentiment

    Community discussion exists, with some users reporting anxiety or stress benefits while others note no noticeable effect on sleep and possible stimulation or side effects. No single Reddit thread is treated as a representative product review.

    no direct URLchecked 2026-08-07
  • Double Wood on-site reviews own platform

    The product page displays a customer-review section without a public aggregate rating or count.

    verified 2026-08-07Open source →
Important to know
AshwagandhaNot for pregnancy, hyperthyroidism, or with sedatives. Effects on TSH can complicate thyroid conditions.

Redaktionellt notes

Genuine licensed KSM-66 (not generic ashwagandha extract) at the exact 600mg/day dose used in the landmark Chandrasekhar 2012 cortisol trial and later testosterone studies. Frequently backordered on the primär site; one of the better-value KSM-66 produkter in the category at $19.95/month.

In plain language

Why this scored this way

This Double Wood Supplements KSM-66 Ashwagandha Supplement scores 8.2, making it a strong scorer. It delivers the full 600.0mg trial dose of Ashwagandha with grade B evidence (promising human data, not yet comprehensive). Transparency is a clear strength (score: 9.0), with third-party testing and a public analysintyg. At $0.33/day it's priced well for what you get.

What drives the score up

  • Dose-evidence score of 8.0 reflects good alignment with trial doses.
  • Quality transparency of 9.0: tested by independent lab with a public analysintyg.
  • Value score of 9.7 at $0.33/day.
  • Ashwagandha is dosed at the full research level with grade B evidence (promising human data, not yet comprehensive).

What drags it down

  • No significant weaknesses identified in the current scoring framework.

Why you'd choose it

  • You want good value at $0.33/day.
  • You want Ashwagandha from a Double Wood Supplements product.
  • You prioritise tested by independent lab produkter with public lab certificates.

Why you might skip it

  • You want a product in a different category.
  • You want a cheaper adaptogen option.
  • You prefer produkter with more consumer feedback.
Go deeper

Where this sits

Varumärke owners

Spot an error?

If you are the manufacturer or brand owner of KSM-66 Ashwagandha Supplement and believe any data on this page is incorrect (wrong dose, wrong ingredient, wrong price, missing certification, outdated status), you can request a correction.

We review every request, verify it against primär sources, and publish any change with a dated note in the version history above. Corrections from brand owners are treated the same as corrections from anyone else: verified before they move.

Request a correction →
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