Ingredient definitions for this formula are in the Supplement Ingredients Glossary.

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World’s Most Researched Form of Ashwagandha.
KSM-66® isn’t just another ashwagandha blend, it’s the form chosen in human clinical trials for stress and performance support.
0Years of Research
0Clinical Trials
Root-Only Extraction Process
The Science Inside Every Serving
The Science Inside Every Serving
Frequently asked questions
Testo Xtreme has 300 mg KSM-66 ashwagandha root extract per tablet, taken once a day after dinner. If you are pregnant, nursing, on medication or have a medical condition, please check with your doctor before use.