Evidence-based·Last reviewed May 30, 2026·How we grade evidence

Turkesterone

PhytochemicalEcdysteroid

Useful mainly for no use is supported by reliable human evidence.

Quick decision guide

May help most

no use is supported by reliable human evidence

Common dosing range

Commonly sold at 250-500 mg/day, but no validated effective dose exists

When to expect effects

Not established

Watch out for

human safety, purity, and label accuracy of turkesterone products are largely unverified

What is it

Turkesterone is an ecdysteroid, a plant steroid found in Ajuga turkestanica and related plants, marketed as a 'natural anabolic' for muscle growth. Despite heavy promotion in fitness circles, it is not a hormone in humans and has essentially no rigorous human clinical evidence behind its muscle-building claims.

Is it worth it for you?

Use this as a quick fit check, not a diagnosis.

Worth considering if…

There is no evidence-based reason to recommend it

Probably skip if…

You expect meaningful muscle or strength gains
You want a product with verified contents and human safety data
You could spend the money on proven options like protein and creatine

Evidence at a glance

muscle growth / strength

Mixed Evidence
Effect
Not demonstrated in humans
Best fit
none established
Time
Not established

Evidence for 1 use

AI-assisted evidence assessment — talk to your doctor before relying on any single supplement.

muscle growth / strength

Mechanism only
Mixed Evidence

Turkesterone's anabolic reputation comes from cell and rodent studies suggesting effects on protein synthesis, not from controlled human trials, of which there are essentially none specific to turkesterone. The broader ecdysteroid literature in humans is sparse and unconvincing, and many marketed products may not even contain the labeled amount. There is no reliable human evidence that it builds muscle or strength.

Effect size
Not demonstrated in humans
Time to effect
Not established
Best fit
none established
Less likely
anyone expecting anabolic effects comparable to the marketing

Bottom line: A heavily marketed but unproven 'natural anabolic' with no credible human evidence of benefit.

Evidence is mixed

Promotional claims and preclinical data conflict with the near-total absence of human trials demonstrating benefit.

SourceIsenmann et al., 2019 — PubMed· conflicting
SourceIsenmann et al., 2019 — PubMed

How to take it

1. Typical dose
No validated effective dose; products typically suggest 250-500 mg/day
2. Timing
Not established
3. With food
Not established
4. How long to try
No evidence base to define a trial period

What to track

nothing reliably linked to its use; if tried at all, watch for unexpected side effects

Safety

Know the common side effects, key cautions, and who should avoid it.

Common side effects

poorly characterized; some users report GI upset

Who should avoid it

  • pregnant or breastfeeding people
  • anyone wanting a product with verified safety and contents

Pregnancy & breastfeeding

Avoid; no safety data exist for use in pregnancy or breastfeeding.

Choosing a product

What to look for on the label — and what to be skeptical of.

Look for…

Third-party testing for actual turkesterone content and contaminants (rarely provided)
Clear species and standardization (often absent)

Be skeptical of…

'Natural anabolic' or 'steroid-like gains'
'As effective as anabolic steroids without side effects'

References by claim

muscle growth / strength

Isenmann et al., 2019 — PubMed (2019) link

Track Turkesterone with Pilora

Set up dose reminders, check interactions, and join the community in the Pilora iPhone app.

Coming to App Store
Evidence-based·Last reviewed May 30, 2026·Evidence current as of May 30, 2026·How we grade evidence

Disclaimer: These statements have not been evaluated by the FDA. This page is educational, not a substitute for personalized medical advice. Evidence grades are AI-assisted assessments — talk to your doctor before starting any new supplement, especially if you’re pregnant, breastfeeding, on medications, or managing a chronic condition.