What is 4 chloro-17a-methyl andros 14 dene-3-17b-diol?
This is a common ingredient in testosterone boosters and VERY
close to an illegal steroid. Check out t-roid or tren extreme they
contain these ingredients. Yes,it is known as pro hormone used for
bodybuilding,AKA estra-4,9-diene-3,17-dione. Sam Don-
www.china-pharm.org