SARMs are not steroids. They can significantly decrease your natural testosterone production. When I ran my ostarine/mk677 cycle I didn’t notice any suppression, not to say that it didn’t happen because I don’t have blood work to prove it, but I didn’t notice any of the classic symptoms of low test, let alone “complete shutdown”.

I do tend to agree these days though that if you’re real serious about real big gains, then safely procured real steroids are probably the way to go, particularly mid-range doses like we see in a lot of these jacked TRT guys.