High Potency Stress, Stamina, Brain Function 5% Withanolides Herbal Supplement Soy, Wheat, Gluten and GMO Free BPA-Free Bottle Helps to Manage Normal Daily Stress Supports Healthy Brain Function Savesta Ashwagandha is the most pure and potent Ashwagandha extract available. Active constituents known as withanolides are thought responsible for many of its benefits. Typical Ashwagandha products only contain 1.5% withanolides. For maximum effectiveness, this full spectrum extract is concentrated to 5%. Every batch of Savesta Ashwagandha is laboratory verified for potency and purity. In Ayurveda, Ashwagandha is considered a Rasayana—promoting rejuvenation, mental and physical health, as well as a defense against aging.