PROYOUNG KSM-66 is the highest concentration ashwagandha root extract available on the market today, created via a process that took 14 years of R&D and produced using a first-of-its-kind extraction process, based on "Green-Chemistry" principles, without using alcohol or any other chemical solvents. It is also called the world's best Ashwagandha. It is an adaptogen that amplifies the body's ability to self-regulate key systems, specifically, the neurological, immune, reproductive, endocrine and energy-production systems.