No, when you are under 10% thats when you take it and see the benefits. Keep dieting and getting your body fat down. It’s a hardening compound for when you are very lean, it’s not a compound that will “make” you lean. Its effects are two fold. It will harden and give the user a dry look. So you need to be lean to see it shine. Masteron is more a pre contest drug or the icing on the cake if you want to get ripped and sculptured in the final weeks before you peak.