FDA to weigh easing limits on unproven peptides favored by RFK Jr. and other MAHA figures Newsday Imagine a compound that accelerates healing, reduces inflammation, and supports muscle recoverythat's BPC 157. This powerful peptide is derived from gastric juice and works by increasing growth factors at the site of The Ultimate Human Shop Peptual TB 500 + BPC 157 Nasal Spray RFK Jr. promotes peptides. Now the FDA weighs easing limits on the unproven chemicals