Performance

Turkesterone

Plant ecdysteroid sold for muscle gain, but human evidence for turkesterone itself is minimal and unconvincing.

score

evidence

Caution

risk

Our methodology: How we evaluate supplements and turn the underlying research into a single rating.

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Use with caution

This supplement may interact with medications, medical conditions or sensitive populations. Review safety before use.

Overview

Forms

Safety

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Quick Take

Skip it for now — human evidence for turkesterone itself is too weak to justify the price.

Turkesterone is a plant ecdysteroid found in Ajuga turkestanica and related species. It is marketed as a non-hormonal anabolic, but most support comes from cell, animal, and neighboring-compound research rather than turkesterone-specific human trials. Proposed mechanisms include signaling through pathways involved in protein synthesis, yet convincing human outcome data are lacking. It is mainly used by gym-focused adults, but current evidence does not show a reliable benefit for the general health-conscious user.

Potential benefits

May support lean mass gains

May improve strength output

May support training recovery

Protocol

Amount

500-1000 mg

Frequency

Once daily

When

Any time of day with food may improve tolerance, but no timing strategy is proven.

Onset Time

Unknown in humans; no well-established onset window

Who Should Consider

Adults who still want to experiment despite weak evidence

People willing to stop if no measurable change after 8

Consumers prioritizing third-party testing over marketing

How It Works

Preclinical work suggests turkesterone may influence muscle-cell signaling pathways linked to protein synthesis, including PI3K/Akt-related signaling, without acting like testosterone at the androgen receptor. Whether oral turkesterone reaches human tissues in amounts that meaningfully change these pathways is still unclear.

Updated 5/19/2026