
 Originally Posted by 
Phate
					
				 
				we have a forum for it under the AS section if you want to read more, but here's a summary
S4 is a SARM(selective androgen receptor modifier), which is the new class that will(hopefully) replace steroids in the next decade or so, the reasoning is this, SARMs are basically non-hormonal, meaning they produce the anabolic effects of steroids(mass gain, fat loss, etc...) without the sides(acne, hairloss) and they also do this without much suppression of the HPTA
but they are still in research, so i'm basically doing research using my body as the experiment