This is one of the biggest peptide regulatory shifts in years. And it's just getting started. The FDA has taken its first step toward reversing its 2023 stance, removing 12 peptides from FDA to weigh easing limits on unproven peptides FDA Peptide Update: Category 2 Removals Explained The FDA just changed the game for peptides. April 2026 The FDA is reviewing Category 2 peptides for potential removal from restricted status. Full approval for some peptides may be FDA to weigh easing limits on unproven peptides promoted by RFK Jr.