That's blatantly and stupidly false you fucking idiot, my best friend jake921660 literally JUST said that, and I've said it in the past as well, so fuck you
I wouldn't mess with that shit until you're getting older like 35+, and you should probably get it from an actual clinic that specializes in it like those "Sports Clinics" or "Youth Clinics" where the doctors are taking your blood every couple weeks and are the ones giving you the injections, which is super expensive, but at least you're getting real shit that's not contaminated. Also it's super fragile, so you want to get it from a place where its been minimally handled
Also why are you asking me I got like no muscle at all and don't even work out lol