FDA Peptide Update: Category 2 Removals Explained The FDA just changed the rules on peptides effective April 15, 2026. BPC 157, GHK Cu, MOTS C, and TB 500 have been removed from the Category 2 restricted compounding list. Here is what PDA (pentadeca arginate) looks new, but it really exists because BPC 157 got banned : r peptidebenchmark FDA Adds Several Peptides to Category 2 Bulks List, Restricting Them From Compounding Restore Health Consulting