I was one of the original loggers for ox.... Suprised the hell out of me. S4 has the potential to eff with your eyes. Osta doesn't nor does lgd. Gw is the greatest endurance multiplier there is. Closest second would be the bad news bears against 1st place 85' bears lol. Gw is a ppar agonist... Marketed as a sarm but isn't a SARM. I recommend www.sarms1.com for your sarms if you want the real deal..