I'm 49 y/o and all I can tell you is that this stuff works better than just about anything I've used. Lean gains, thinner skin, lower body fat on a diet of just about eating anything I want including having a couple of beers per day. I ran it for two months over the summer – and I am on week three of a current run – and intend to run it for probably 2 to 4 months.
Plus – and this is huge – the healing effects of this compound are amazing. My old creaky joints – including those with some mild arthritis have never felt better – not to say that they don't act up every now and then – but I no longer wake up with pain in my body. Lastly, the sleep quality is truly unbelievable – you will have the most vivid dreams you ever had since you were a teenager.
I'm currently running about 15 mg per day – I start out around nine or 10 mg that for the first week and bump up from there – at this dose I do not have any sides at all. When I first started this – and started blasting 25 mg per day – I got a lot of water retention and lethargy. Keeping it in the 10 to 15 mg range keeps me pretty much side effect free.
Make sure you check your source – because you don't want to wind up getting some Ostarine that suppresses you.
Definitely worth it if you are over 40 years old