（info@sports-ingredient.com）We have pass FDA.In addition to its obvious application to bodybuilding, ecdysterone has another potential use. Ecdysterone, like tribulus terrestris, has the ability to increase testosterone production. By doing so, ecdysterone has the capability of improving overall sexual function. In one clinical study, ecdysterone was administered for 10 days, and after that time, sexual function was improved in the ecdysterone group.