Ashwagandha, aka Withania Somnifera has been used for over 3,000 years to relieve stress, increase energy levels, and improve concentration. Studies have shown it may be useful in reducing blood sugar and cortisol levels, as well as promoting antioxidant activity that protects nerve cells from harmful free radicals. - Potent 20:1 Extract, 1g extract = 20g dried herb (twice as strong as 10:1. - Sourced from Certified Organic Growers. - Free from fillers. - Lab-tested for heavy metals and contaminants.