Nutritionist, naturopath, and peptide formulator Kyal Van Der Leest breaks down the peptides that actually matter for midlife women from BPC 157 (the Swiss Army knife of peptides) to GHK Copper for BPC 157 Rapid 60c by InfiniWell BPC 157 isn't magic. But it's pretty close to what healing looks like when you give the body the right signals. Originally derived from gastric juice, BPC 157 is a synthetic peptide designed to BPC 157 Mark Hyman, MD