I'm 49 and credit Ostarine with bringing my cuts back, I love the stuff. I never let myself get fat, always had a quick metabolism, but you lose the defination as you age.
With Osta I don't even change my diet, still drink beer daily etc, and the bodyfat melts off in caloric deficit. I usually run a full body workout, EOD. The Osta holds muscle even in deep caloric deficit. Seem to make joints feel great as well.
I cycle it usually @20mg for 8 weeks on/off. I have also used Rad140, LGD, S4, but I like the Osta for the above reasons, and less supressive than Rad. I turned to SARMS due to prostate issues from dht, (Test, Masteron, Proviron, etc...) I might look at running some low dose test along with sarm cycles in the future again at some point.