Equipoise Cycle Quide: What Is Equipoise (Boldenone)? Equipoise is also known as Boldenone Undecylenate and, although this may sound harsh, it’s actually a steroid used by veterinarians to treat horses and some cattle. In bodybuilding circles, however, it is used as a ‘poor man’s Deca Durabolin’ though it has little in common with that steroid. […]