Are Peptides Safe? What Older Adults Need to Know Injectable Peptides: Out of the Back Alley and Into the Light? Berkley Lifesciences Big FDA review coming this July. Here's what athletes and patients should know about BPC 157, TB 500, and the broader peptide conversation. Always speak with your physician before starting any new protocol. #bpc157 # RFK Jr. promotes peptides. Now the FDA weighs easing limits on the unproven chemicals BPC 157: Miracle Healing Peptide or Hidden Danger?