Why we love it? One Nutrition Ashwagandha uses KSM 66 which is the only form of extensively studied Ashwagandha with proven results for stress, anxiety, fertility, and sexual function. Blended with Zinc Picolinate & magnesium for additional targeted support at times of stress ....and why you will too Created using only carefully selected, superior ingredients such as clinical researched KSM 66 & a highly absorbable, high strength form of zinc, this formulation focuses on delivering relief for stress & nervous tension but also supports the immune system, fertility & sexual function.