Boldenone (developmental code name RU-18761), is a naturally occurring anabolic–androgenic steroid (AAS) and the 1(2)-dehydrogenated analogue of testosterone
Boldenone, also known as Equipoise, is an anabolic androgenic steroid (AAS) that is derived from testosterone. It was originally developed for veterinary use but has also been used off-label by bodybuilders and athletes.