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what-is-turkesterone
What is Turkesterone?
A clear, no-hype guide to turkesterone — what it is, the plant it comes from, how it's standardised, the extract forms you'll see on labels, and, crucially, how to tell a genuine product from the many that aren't. Turkesterone is a food supplement popular in sports nutrition.
Last updated July 2026 · Written by Vitality Supplements Editorial Team · ~2,400 words · 9 min read
Food supplement information — not medical advice
UK manufactured
ISO/IEC 17025 batch tested
4.8★ from 2,400+ reviews
Evidence-referenced
Quick answer
What is turkesterone?
Turkesterone is a naturally occurring phytoecdysteroid — a plant steroid compound — found mainly in the plant Ajuga turkestanica. It belongs to the ecdysteroid family and is closely related to ecdysterone. It has become popular in the fitness and sports-nutrition community, though human research is still limited and early. It is sold as a food supplement in the UK with no authorised health claims. Because independent testing has repeatedly found many turkesterone products contain little or none of what they claim, standardisation and third-party verification matter more here than almost anywhere.
Key takeaways
- Turkesterone is a phytoecdysteroid (a plant steroid) from Ajuga turkestanica.
- It is part of the ecdysteroid family, closely related to ecdysterone (20-hydroxyecdysone).
- It is popular in sports nutrition, but human evidence is limited and early.
- Product quality varies enormously — many products test low or empty for actual turkesterone.
- Look for a stated standardisation %, HPLC testing and a Certificate of Analysis.
- It is a UK food supplement with no authorised health claims.
The basics
What turkesterone actually is
Turkesterone is a phytoecdysteroid — one of a family of steroid-like compounds that plants produce naturally. Ecdysteroids are the plant analogues of the hormones some insects and crustaceans use to moult, but in humans they are simply plant compounds taken as food supplements. Turkesterone is one of the more talked-about members of this family, alongside its close relative ecdysterone (20-hydroxyecdysone).
It rose to popularity from around 2020 in the fitness and biohacking community, largely through social media. As a supplement it is usually an off-white powder in capsules. It is important to be clear about what turkesterone is not: despite the word "steroid" in its chemical class, it is not an anabolic or androgenic steroid, and it is sold as a food supplement, not a medicine. Human research remains limited and early, so this guide focuses on what turkesterone is and how to judge product quality rather than on effects.
One of the most talked-about — and most inconsistently made — supplements in sports nutrition.
The source
Where turkesterone comes from
Turkesterone is concentrated in Ajuga turkestanica, a plant native to the mountains of Central Asia, particularly Uzbekistan. The extract is typically made from the plant's aerial parts. Ecdysteroids are also found in other plants such as Rhaponticum carthamoides (maral root) and spinach, but Ajuga turkestanica is the source associated specifically with turkesterone.
Chemically, turkesterone is very similar to ecdysterone, differing by an extra hydroxyl group. The two are often confused or used interchangeably in marketing, but they are distinct compounds — worth knowing when comparing labels.
Ajuga turkestanica
The plant source. A Central Asian plant whose aerial parts are the source associated with turkesterone extracts.
The ecdysteroid family
A class of plant compounds. Ecdysteroids are plant steroids; turkesterone and ecdysterone are the two most discussed in supplements.
Turkesterone vs ecdysterone
Related but distinct. Turkesterone differs from ecdysterone by an extra hydroxyl group. Labels sometimes blur the two.
Not an anabolic steroid
Important distinction. Despite its chemical class, turkesterone is a plant compound and food supplement — not an anabolic or androgenic steroid.
This is the important bit
Standardisation & forms
With turkesterone, the number that matters most on a label is the standardisation percentage — how much actual turkesterone the extract is verified to contain. Most products are standardised to around 10% turkesterone, so a 500 mg serving of a 10% extract provides roughly 50 mg of turkesterone itself. A higher extract weight with no stated percentage tells you very little.
10%
Typical standardisationThe most common stated turkesterone percentage.
500mg
Common servingOf extract per day — the market norm, not a recommendation.
HPBCD
Complex formSome products bind the extract to cyclodextrin for solubility.
HPLC
The test that countsThe method that actually verifies turkesterone content.
You will also see turkesterone offered as a cyclodextrin complex (often "hydroxypropyl-beta-cyclodextrin" or HPBCD). Because turkesterone is poorly water-soluble, binding it to cyclodextrin is a formulation approach intended to aid solubility. Whether complexed or not, the key questions are the same: what percentage is it standardised to, and how was that verified? We go deeper on reading a label in our turkesterone standardisation & form guide.
A big number on the front means nothing without a verified percentage behind it.
Why quality varies so much
What to check before you buy
Turkesterone has a well-documented problem the rest of the supplement world mostly doesn't: independent testing has repeatedly found that many products on the market contain little, or even none, of the turkesterone they claim. Some are simply generic plant extract with an impressive label. This makes verification the single most important thing to get right — more than price, more than capsule count.
A note on testing method matters here too: simpler UV testing can overstate ecdysteroid content, whereas HPLC is far more specific to turkesterone itself. A trustworthy product states its standardisation, tests by HPLC, and will provide a Certificate of Analysis on request.
- A stated standardisation % — e.g. "standardised to 10% turkesterone", not just "500mg extract".
- HPLC verification — the method specific enough to confirm turkesterone, not just total ecdysteroids.
- A Certificate of Analysis on request — batch-level proof of what's actually in the capsule.
- Transparency on the source — Ajuga turkestanica, and whether it's a plain extract or a cyclodextrin complex.
- Independent, accredited testing — ideally an ISO/IEC 17025-accredited laboratory.
- UK manufacturing & clear labelling — easier to verify and hold to standard.
People exploring turkesterone often look at it alongside other sports-nutrition and longevity supplements. Whatever you choose, the same principle applies: buy on verified content, not on the biggest number on the label.
Common questions
Turkesterone FAQ
Turkesterone is a phytoecdysteroid — a steroid-like compound made by plants. Despite the word "steroid" in its chemical class, it is not an anabolic or androgenic steroid and does not act like one. It is a plant compound sold as a food supplement in the UK, with no authorised health claims.
Mainly from the plant Ajuga turkestanica, native to Central Asia, using its aerial parts. Ecdysteroids are also found in other plants such as maral root and spinach, but Ajuga turkestanica is the source associated specifically with turkesterone.
It means the extract is verified to contain 10% turkesterone by weight — so a 500mg serving provides about 50mg of turkesterone itself. The percentage matters far more than the total extract weight. A product that lists only "500mg" with no percentage tells you little about actual turkesterone content.
Independent testing has repeatedly found that many turkesterone products contain little or none of the turkesterone they claim — some are generic plant extract. This is why a stated standardisation percentage, HPLC testing (which is specific to turkesterone) and a Certificate of Analysis on request matter so much. Buy on verified content, not on the label's headline number.
A common serving on the market is around 500mg of extract per day (typically standardised to about 10%). This reflects what products offer rather than an established or recommended dose — there is no official RDA for turkesterone, and human research is limited. Consult a healthcare professional before starting any new supplement.
Long-term human safety data is limited. As a general precaution it is not recommended for anyone under 18, or during pregnancy or breastfeeding, and anyone taking medication or managing a health condition should speak to a healthcare professional first. As with any supplement, introduce one product at a time.
Turkesterone, done properly
Our High-Strength Turkesterone is 500mg per capsule, UK-manufactured and independently batch tested, with a Certificate of Analysis available on request.
Continue reading
About the author. This guide was written and reviewed by the Vitality Supplements Editorial Team, a UK supplement manufacturer. Every batch we produce is independently tested by an ISO/IEC 17025-accredited laboratory, with a Certificate of Analysis available on request.
This article is for general information about food supplements and is not medical advice. Turkesterone is sold as a food supplement in the UK and carries no authorised health claims. Always consult a qualified healthcare professional before starting any supplement, particularly if you are under 18, pregnant, breastfeeding, taking medication or managing a health condition. References available on our research references page.
