HGH is the best thing you can take right next to testosterone. Don’t worry about losing fat and building muscle mass, recomps are more complicated than people realize and sometimes only happen on certain conditions. I’ve recomped while dieting down 30+ lbs, but a lot of that muscle was muscle memory from muscle I had lost. For the most part guys who try to do both end up spinning their wheels especially if their past the noobie gains. Focus on either losing fat or building muscle and at 20+ bf the answer is lose the fat. 10% bf is achievable drug free, so keep that in mind. Certain compounds definitely aid once you’re closer to either help get rid of more fat or push through workouts while very depleted and performance in the gym starts declining, but if you can’t see your abs you're definitely not there yet and don’t need anything else.