The product we’re talking about today is Follistatin 344. Follistatin 344 is an autocrine activin-binding protein that is expressed in almost all tissues of higher animals. So, when bodybuilder use Follistatin 344 build Muscle,  What does follistatin 344 have to do with muscle, and how does it build muscle?   The following are follistatin 344 basic information: Product Name:Follistatin 344 CAS: 80449-31-6 MF: C13H16O3 …