Ecdysteroid, which is a group of substances that have a structure similar to androgens. Ecdysteroids occur naturally in animals and plants. The similarity to androgens makes it similar to the aggressive supplements many bodybuilders and athletes use. Turkesterone’s fundamental mode of action is to stimulate protein synthesis. That alone means it fits right in with the 5% family of products. Now, you can take protein synthesis farther than you ever thought possible.