| Semaglutide GLP-1 receptor agonist | FDA-approved | FDA-approved products exist. Broad copy compounding is not a Category 1 peptide-bulk pathway, and FDA flags unapproved GLP-1 products and salt forms as safety risks. On May 1, 2026, FDA separately proposed to exclude semaglutide from the 503B outsourcing-facility bulks list on a 'no clinical need' finding; if finalized, this would permanently bar large-scale 503B bulk compounding. This is a 503B action, not a 503A category change, and does not alter the drug's FDA-approved status. Public comment on the proposed 503B bulks-list exclusion due July 30, 2026 (FDA extended the deadline 30 days on June 26, 2026; docket FDA-2018-N-3240). | FDA-approved products, FDA GLP-1 compounding safety communications, and the May 2026 proposed 503B bulks-list exclusion. |
| Tirzepatide Dual GIP/GLP-1 receptor agonist | FDA-approved | FDA-approved products exist. Copy compounding is constrained by approved-drug and shortage rules, not Category 1 peptide-bulk status. On May 1, 2026, FDA proposed to exclude tirzepatide from the 503B outsourcing-facility bulks list on a 'no clinical need' finding; if finalized, this would permanently bar large-scale 503B bulk compounding. This is a 503B action, not a 503A category change, and does not alter the drug's FDA-approved status. Public comment on the proposed 503B bulks-list exclusion due July 30, 2026 (FDA extended the deadline 30 days on June 26, 2026; docket FDA-2018-N-3240). | FDA-approved products, FDA GLP-1 compounding safety communications, and the May 2026 proposed 503B bulks-list exclusion. |
| Liraglutide GLP-1 receptor agonist | FDA-approved | FDA-approved products exist. This is an approved-drug pathway, not a Category 1 peptide-bulk listing. On May 1, 2026, FDA proposed to exclude liraglutide from the 503B outsourcing-facility bulks list on a 'no clinical need' finding; if finalized, this would permanently bar large-scale 503B bulk compounding. This is a 503B action, not a 503A category change, and does not alter the drug's FDA-approved status. Public comment on the proposed 503B bulks-list exclusion due July 30, 2026 (FDA extended the deadline 30 days on June 26, 2026; docket FDA-2018-N-3240). | FDA-approved product records and the May 2026 proposed 503B bulks-list exclusion. |
| Tesamorelin GHRH analog | FDA-approved | FDA-approved product exists. Any compounding analysis starts from approved-drug rules rather than Category 1 bulk status. | FDA-approved product records. |
| PT-141 / Bremelanotide Melanocortin receptor agonist | FDA-approved | FDA-approved product exists for a specific indication. That approval does not validate non-approved indications. | FDA-approved product records. |
| Oxytocin Neuropeptide hormone | FDA-approved | FDA-approved drug products exist. This is not a consumer peptide-bulk compounding status. | FDA-approved product records. |
| Elamipretide Mitochondria-targeted peptide | FDA-approved | FDA-approved product exists under an approved-drug pathway. It is not a Category 1 compounded bulk peptide. | FDA-approved product records. |
| GHK-Cu Glycyl-L-histidyl-L-lysine copper | Category 1PCAC review | Category 1 for non-injectable routes in the current FDA 503A list. Injectable GHK-Cu was removed from Category 2 in April 2026 (its nomination was withdrawn) effective on or about April 22, 2026 — that removal does not place it on Category 1 and does not authorize compounding. Injectable GHK-Cu is slated for a separate FDA PCAC consultation before the end of February 2027. PCAC consultation for injectable routes before end of February 2027. | Current FDA 503A category PDF lists GHK-Cu except injectable routes; injectable GHK-Cu was among 12 peptides removed from Category 2 in April 2026 (nominations withdrawn) and is slated for a PCAC consultation before the end of February 2027. |
| NAD+ Nicotinamide adenine dinucleotide | Category 1Not a peptide | Category 1 in the current FDA 503A list. It is a coenzyme, not a peptide, and Category 1 is not FDA drug approval. | Current FDA 503A category PDF. |
| Vasoactive intestinal peptide VIP | Category 1 | Category 1 in the current FDA 503A list if all compounding conditions are met. | Current FDA 503A category PDF. |
| Sermorelin GHRH (1-29) | Other compoundable path | Not shown as a May 2026 Category 1 peptide-bulk entry. Peptide Garden tracks it separately because its profile cites a prior FDA approval, withdrawal not for safety or effectiveness, and an established compounding pathway. | Secondary Peptide Garden profile context; not counted as a Category 1 tracker entry. |
| Kisspeptin-10 Kisspeptin fragment | Category 2InvestigationalNot compoundable | Category 2 in the current FDA 503A list. Treat as not currently compoundable. | Current FDA 503A category PDF and profile clinical-trial context. |
| Ipamorelin acetate Growth hormone secretagogue | Category 2PCAC reviewNot compoundable | Category 2 for 503B outsourcing facilities and not listed as a Category 1 503A bulk substance. | FDA safety-risk page and prior PCAC review context; no current Category 1 listing identified. |
| GHRP-2 Growth hormone releasing peptide-2 | Category 2Not compoundable | Category 2 for injectable and nasal routes in FDA's safety-risk materials. Treat as not currently compoundable. | FDA safety-risk page. |
| GHRP-6 Growth hormone releasing peptide-6 | Category 2Not compoundable | Category 2 in FDA's safety-risk materials. Treat as not currently compoundable. | FDA safety-risk page. |
| Ibutamoren MK-677 | Category 2Not compoundableNon-peptide secretagogue | Category 2 in the current FDA 503A list. Included because it is frequently grouped with growth hormone peptides in consumer searches. | Current FDA 503A category PDF. |
| BPC-157 BPC-157 free base and acetate salt PCAC hub | PCAC reviewNot compoundable | Not currently Category 1. Removed from Category 2 in April 2026 (nomination withdrawn) and scheduled for July 2026 PCAC review for possible 503A bulk-list inclusion. Removal from Category 2 does not authorize compounding. PCAC review scheduled for July 23, 2026. | FDA July 2026 PCAC meeting notice and the April 2026 Category 2 removal. |
| KPV KPV free base and acetate salt PCAC hub | PCAC reviewNot compoundable | Not currently Category 1. Removed from Category 2 in April 2026 (nomination withdrawn) and scheduled for FDA PCAC review for possible 503A bulk-list inclusion. Removal from Category 2 does not authorize compounding. PCAC review scheduled for July 23, 2026. | FDA July 2026 PCAC meeting notice. |
| TB-500 Thymosin beta-4 fragment (17-23) acetate PCAC hub | PCAC reviewNot compoundable | Not currently Category 1. Removed from Category 2 in April 2026 (nomination withdrawn) and scheduled for FDA PCAC review for possible 503A bulk-list inclusion. Removal from Category 2 does not authorize compounding. PCAC review scheduled for July 23, 2026. | FDA July 2026 PCAC meeting notice. |
| MOTS-c MOTS-c free base and acetate salt PCAC hub | PCAC reviewNot compoundable | Not currently Category 1. Removed from Category 2 in April 2026 (nomination withdrawn) and scheduled for FDA PCAC review for possible 503A bulk-list inclusion. Removal from Category 2 does not authorize compounding. PCAC review scheduled for July 23, 2026. | FDA July 2026 PCAC meeting notice. |
| Semax Semax free base and acetate salt PCAC hub | PCAC reviewNot compoundable | Not currently Category 1. Removed from Category 2 in April 2026 (nomination withdrawn) and scheduled for FDA PCAC review for possible 503A bulk-list inclusion. Removal from Category 2 does not authorize compounding. PCAC review scheduled for July 24, 2026. | FDA July 2026 PCAC meeting notice. |
| Emideltide / DSIP Delta sleep-inducing peptide PCAC hub | PCAC reviewNot compoundable | Not currently Category 1. Removed from Category 2 in April 2026 (nomination withdrawn) and scheduled for FDA PCAC review for possible 503A bulk-list inclusion. Removal from Category 2 does not authorize compounding. PCAC review scheduled for July 24, 2026. | FDA July 2026 PCAC meeting notice. |
| Epitalon Epitalon free base and acetate salt PCAC hub | PCAC reviewNot compoundable | Not currently Category 1. Removed from Category 2 in April 2026 (nomination withdrawn) and scheduled for FDA PCAC review for possible 503A bulk-list inclusion. Removal from Category 2 does not authorize compounding. PCAC review scheduled for July 24, 2026. | FDA July 2026 PCAC meeting notice. |
| AOD-9604 hGH fragment 176-191 | PCAC reviewNot compoundable | Not currently Category 1. FDA PCAC reviewed AOD-9604-related bulk substances in December 2024; no current Category 1 listing identified. | FDA December 2024 PCAC notice and current 503A category PDF. |
| CJC-1295 CJC-1295 related bulk drug substances | PCAC reviewNot compoundable | Not currently Category 1. FDA PCAC reviewed CJC-1295-related bulk substances in December 2024; no current Category 1 listing identified. | FDA December 2024 PCAC notice and current 503A category PDF. |
| Thymosin alpha-1 Thymosin alpha-1 free base and acetate | PCAC reviewNot compoundable | Not currently Category 1. FDA PCAC reviewed thymosin alpha-1-related bulk substances in December 2024; no current Category 1 listing identified. | FDA December 2024 PCAC notice and current 503A category PDF. |
| Selank Selank acetate / TP-7 | Not compoundable | Not currently Category 1. FDA's safety-risk page continues to flag the substance even though nomination-status changes affected Category 2 placement. | FDA safety-risk page and current 503A category PDF. |
| Retatrutide Triple GIP/GLP-1/glucagon receptor agonist | InvestigationalNot compoundable | Investigational. FDA explicitly states retatrutide cannot be used in compounding under federal law. | FDA GLP-1 compounding safety page. |
| Cagrilintide Amylin analog | InvestigationalNot compoundable | Investigational. FDA explicitly states cagrilintide cannot be used in compounding under federal law. | FDA GLP-1 compounding safety page. |