Turkesterone is an ecdysteroid which is a steroid found typically in plants and insects. They are responsible for the development of these insects - specifically the molting and growth aspect of them.
Turkesterone in supplement form is typically from a Leuzea plant. Many of these ecdysterones are similar in their effects on humans, but typically Turkesterone is seen as having the most powerful effects.
Turkesterone has gained a lot of interest in the bodybuilding community as it can dramatically improve your performance, gains and alter your body composition.
It has been compared in it's effacacy to anabolic steroids but have none of the androgenic downsides that those compounds contain