FDA Is Expected to Lift Restriction on Peptides, Heeding RFK Jr.'s Wishes The New York Times FDA to weigh easing limits on unproven peptides favored by RFK Jr. and other MAHA figures Pittsburgh Post Gazette Gray Market Peptides: So Much Hype, So Little Data Research Peptides In Minnesota: Why Not For Human Consumption Doesn't Protect You Holt Law Injectable Peptides: Out of the Back Alley and Into the Light? Berkley Lifesciences Some peptides are FDA approved drugs. Some are legal supplements. Some are neither. The same word, peptide, covers all three categories. The regulatory status of the specific compound is what determines legality.