What studies found
In 31 active adults, 500 mg a day for 4 weeks didn't change body composition or grip strength. Single 1,000 mg or 2,000 mg doses didn't change IGF-1, metabolism, heart rate or blood pressure in 11 young men. No human study shows it raises testosterone. A 2023 analysis found many turkesterone products had little or none of the labeled amount.
How much is in our products
| Product | Amount |
|---|---|
| Turkesterone | 1,000 mg per 2-capsule serving |
In studies: 500 mg a day for 4 weeks; single doses of 1,000 mg and 2,000 mg.
Our 1,000 mg is twice the only multi-week trial, and there are no multi-week human data at this amount.
Who should take care
There's no long-term safety data, and it's not for anyone under 18, pregnant or nursing. Talk to your doctor first if you take blood sugar medicines, including GLP-1 drugs, have a hormone-sensitive condition, or take hormone therapy. Ecdysterone, a related compound, is on WADA's 2026 Monitoring Program, so check with your sport if you're tested. Stop before surgery and tell your surgical team.
Talk to your doctor or pharmacist before starting a supplement if you take any medicine, are pregnant or breastfeeding, or have a health condition.
Read more in our guides
Sources
- Antonio J, et al. 2024. Turkesterone 500 mg/day, 4-week RCT. Research Directs in Health Sciences
- Harris DR, et al. 2024. Single-dose turkesterone crossover trial. Muscles
- Cohen PA, et al. 2023. Botanical content of sports supplements. JAMA Network Open
- Todorova V, et al. 2024. Review of ecdysterone and turkesterone. Nutrients
- Operation Supplement Safety (US Dept of Defense) 2026. Ecdysterone and turkesterone supplements
- World Anti-Doping Agency 2026. Monitoring Program
This page is for general education and isn't medical advice. *These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure or prevent any disease.