Right now I'm sitting at 230lbs at maybe 17-18%bf. I want to try and retain the as much muscle as possible. I'm looking for something to help with that. I do not want to do anything that would "shut me down". I was thinking either ephedrine, clen, dnp, or a peptide.
What would you guys recommend? From your experience what worked best for you. I already have my diet planned out and I know that this is a must. I'm only looking for something to run along side my diet to retain muscle.

I'm 22years old. I have done 3 cycles. I have been lifting for 5 years.

Current: 230lbs@17-18%
Goal: 200lbs@12-13%bf <------Is this realistic given my stats?

Thanks team,
Ryan