Home / Ingredient Directory / Turkesterone

Reviewed by Yannis Lopez · Nutrition Industry Veteran

Last updated: September 14, 2026

Muscle & Performance Phytoecdysteroid

Turkesterone

The trending "super steroid" with almost no evidence of its own -- most of what gets cited was actually studied on a different compound

No dedicated human trials

Often confused with better-studied ecdysterone

Important: These statements have not been evaluated by the FDA. This information is not intended to diagnose, treat, cure, or prevent any disease. Always consult your physician before starting any supplement.

Overview

Turkesterone is a phytoecdysteroid found in Ajuga turkestanica, a plant native to Central Asia. Chemically, it's a close cousin of ecdysterone -- the two molecules differ by a single hydroxyl group -- and social media marketing has run hard with that similarity, branding turkesterone as a stronger, "next-generation" version of an already-hyped compound.

Here's the honest problem: unlike ecdysterone, turkesterone itself has not been the subject of a published human clinical trial for muscle building. When you trace the "studies" cited in turkesterone marketing back to their source, they almost always turn out to be about ecdysterone specifically, or about whole Ajuga turkestanica plant extract tested in aged mice -- not turkesterone, isolated, tested in people.

What the Marketing Claims vs. What's Actually Been Studied

The "Human Study" Claim

Turkesterone product pages frequently cite a human muscle-mass study. Traced to its source, that data is almost always the 2019 ecdysterone trial -- a different compound entirely -- not a turkesterone-specific study.

What Real Data Exists: Aged Mice

Ajuga turkestanica extract, given to 20-month-old mice for 28 days, increased Notch and Wnt cell-signaling activity linked to muscle satellite cell function. Real finding, but it's a signaling study in old mice, not a strength or muscle-mass study in people.

Cell Culture Signals

In vitro work suggests phytoecdysteroid-rich Ajuga extracts can activate the same p70S6K protein-synthesis pathway IGF-1 uses, and may suppress myostatin. Interesting mechanism, but cells in a dish are not muscle in a body.

Borrowed Credibility

Because turkesterone and ecdysterone are structurally close, brands treat ecdysterone's human evidence as if it transfers automatically. Small structural differences change receptor binding and potency -- that transfer isn't guaranteed, and hasn't been directly tested.

Typical Dosage

No Clinical Dose Exists

500-1,000mg

Commercial products typically list this range for Ajuga turkestanica extract, but it's a manufacturer's convention, not a dose derived from a human trial

What to Look For

Honest expectations

There is no published trial to tell you what dose, if any, produces a measurable effect in humans

Pro Tips

If a product page cites "a study," check whether it's actually about ecdysterone, not turkesterone
Ecdysterone itself has real human data -- if you want something in this category, that's the better-evidenced option
Treat any strength gains reported anecdotally as likely coming from training and stack ingredients, not turkesterone in isolation
This is a "watch and wait" ingredient -- worth revisiting if a real human RCT is eventually published

Research Snapshot

A 2014 study gave aged mice (20 months old) a phytoecdysteroid-enriched extract of Ajuga turkestanica for 28 days and found it significantly increased markers of Notch and Wnt signaling in satellite cells within the triceps brachii muscle -- pathways involved in muscle repair and maintenance during aging. Resting satellite cell numbers did not change. This is genuinely the closest thing to supportive biological data specific to this plant, and it's a rodent signaling study, not a human muscle-mass or strength trial.

Source: Arthur et al., European Review for Medical and Pharmacological Sciences (2014)

How Turkesterone Compares

Ingredient	Human Evidence	Key Difference
Turkesterone	No dedicated human RCTs	Marketed on data that actually belongs to a different compound
Ecdysterone	One positive RCT	The better-studied chemical relative with real human data
Laxogenin	Zero human studies	The one animal study designed to test it found no anabolic effect
Creatine	500+ studies	The actual gold standard for evidence-based muscle and strength support

These are the most common comparisons our customers ask about in-store.

If You're Building a Training Stack

Better-Evidenced Swap

Ecdysterone + Creatine + Whey Protein

Same "natural anabolic" category, actual human trial data behind it

Proven Foundation

Creatine + Whey Protein + EAA

Skip the speculative compound entirely and build on decades of solid evidence

If You Want to Try It Anyway

Turkesterone + Resistance Training + Realistic Expectations

Track your own results carefully -- there's no trial data to tell you what to expect

Frequently Asked Questions

Is turkesterone the same as ecdysterone?

No, though they are close chemical relatives -- both are phytoecdysteroids, differing by one hydroxyl group. Ecdysterone has a published human randomized controlled trial behind it. Turkesterone specifically does not.

Does turkesterone actually build muscle?

There is no published human trial testing turkesterone directly on muscle mass or strength. The supporting evidence is limited to a study in aged mice (showing increased muscle stem cell signaling from whole Ajuga turkestanica extract) and cell-culture work -- not a controlled study in trained humans.

Why does turkesterone marketing cite scientific studies?

Most of the cited research is actually about ecdysterone (a different, better-studied compound) or about whole-plant Ajuga turkestanica extract tested in mice, not isolated turkesterone tested in humans. The marketing borrows credibility from its more-studied chemical cousin.

Sources & References

1. Arthur, S.T., Zwetsloot, K.A., Lawrence, M.M., et al. (2014). Ajuga turkestanica increases Notch and Wnt signaling in aged skeletal muscle. European Review for Medical and Pharmacological Sciences, 18(18), 2584-2592.

2. Todorova, V., Ivanova, S., Chakarov, D., Kraev, K., & Ivanov, K. (2024). Ecdysterone and Turkesterone-Compounds with Prominent Potential in Sport and Healthy Nutrition. Nutrients, 16(9), 1382.

3. Isenmann, E., Ambrosio, G., Joseph, J.F., et al. (2019). Ecdysteroids as non-conventional anabolic agent: performance enhancement by ecdysterone supplementation in humans. Archives of Toxicology, 93(7), 1807-1816. (The human trial commonly -- and incorrectly -- cited for turkesterone)

All references are peer-reviewed studies or position stands from reputable organizations.