Unlocking the Power of Peptides: What You Need to Know About BPC 157, KPV, TB 500, BPC 157 & TB 500: What You Need to Know Not all peptides are restricted. Here's the breakdown you actually need. The FDA's Category 2 classification affects specific compounded peptides BPC 157, TB 500, CJC 1295 Ipamorelin, AOD 9604, Epithalon, Selank, Semax. Others like Sermorelin TB 500 vs BPC 157: Comprehensive comparison of healing peptides