Klow Blend: BPC 157, TB 500, KPV, GHK Cu Nordsci goop Peptide Stacking Is EverywhereBut Should You Be Doing It? The peptide conversation is shifting. Secretary RFK Jr. recently announced that the FDA plans to move 14 peptides from Category 2 back to Category 1 restoring FDA recognized status and making them The FDA is reviewing 12 peptides for removal from its restricted listincluding BPC 157, TB 500, Semax, and GHK Cu. If it goes through, it's the biggest peptide policy shift in years. More access. Easier