Everyone online is suddenly injecting peptides. But almost nobody understands the scienceor the regulation. The FDA recently shifted several peptides off the Category 2 safety risk list tied to compounding rules. First, that FDA Compliance for Peptide Therapy and BPC 157 Holt Law Regulatory Alert: FDA's April 2026 Update on BPC 157 and GHK Cu Holt Law BPC 157: The peptide with big claims and scant evidence STAT RFK Jr.'s peptide push could unleash risky drugs STAT First Opinion