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4Optional

Turkesterone

Also sold as Ecdysterone, ecdysteroids, Ajuga turkestanica

A plant ecdysteroid sold as a 'natural anabolic' — human evidence is minimal, and independent testing has found many products contain far less than the label claims.

TrustedSupp Tier System™ · Tier 4Take by choice, or not at all

Evidence strength

15/100Weak
WEAKLIMITEDMODERATESTRONGVERY STRONG

What the evidence supports: muscle gains in a single small human study of a related compound.

This scores how well-supported the claim above is — not how much benefit you personally would get. A high score on a narrow claim does not extend to everything the product is marketed for.

How long to take it

Not established.

Who it's actually for

Limited justification. Competitive athletes should check current anti-doping guidance, as ecdysterone has been under WADA monitoring.

Safe upper limit

Unverified
No formal upper limit; label doses vary widely
No specific safety signals in the limited human data, but content accuracy is a real problem — some tested products contained a fraction of the stated amount.
No source or citation attached yet.

Interactions to know about

No commonly documented medication clashes in our data. That is not the same as none existing.

Run your full list through the interaction check.

Practical notes

  • The most-cited human study used ecdysterone, not turkesterone, and hasn't been well replicated.
  • Label accuracy is poor across the category — third-party testing matters more than usual.
  • Tested athletes should check current anti-doping status before use.