Equipoise is the trade name for the androgenic anabolic steroid Boldenone Undecylenate. This is a testosterone based injectable steroid with the Undecylenate ester attached to prolong its release time. Equipoise is officially a veterinary product, intended for use in animals, therefore the steroid is only available through veterinarians and on the black market. Boldenone became popular among bodybuilders and even more among athletes as a less androgenic form of Testosterone.