FDA 503A Peptide Compounding Tracker

By Brian Williams, Co-founder & Research EditorFact-checked by Megan WilliamsUpdated July 28, 2026

On July 23-24, 2026, FDA's Pharmacy Compounding Advisory Committee (PCAC) voted on seven peptides proposed for the 503A Bulks List— the list of bulk drug substances that compounding pharmacies may legally use. The committee recommended six of the seven, overruling FDA's own reviewers, who had recommended against all of them.

What this vote did not do

  • It did not approve any peptide. None of these substances became an FDA-approved drug.
  • It did not make anything legal to compound. The vote is advisory. FDA must still complete notice-and-comment rulemaking before the list at 21 CFR 216.23 changes.
  • It did not set a deadline. No statute requires FDA to act within any particular period, and no peptide rulemaking date has been announced.
  • It did not endorse the uses these peptides are marketed for. FDA reviewed narrow, specific indications — see the table below.

Anyone telling you a peptide is now “FDA approved,” “legalized,” or “unbanned” because of this vote is wrong.

Status of all seven peptides

PeptideIndication FDA reviewedVoteOutcomeLegal to compound today?
BPC-157Ulcerative colitis8-6, 1 abstention RecommendedNo
KPVWound healing and inflammatory conditions8-6, 1 abstention RecommendedNo
TB-500Wound healing8-6, 1 abstention RecommendedNo
MOTS-cObesity and osteoporosis7-5 RecommendedNo
SemaxCerebral ischemia, migraine and trigeminal neuralgia8-5 RecommendedNo
EpitalonInsomnia7-5, 1 abstention RecommendedNo
Emideltide (DSIP)Opioid withdrawal, chronic insomnia and narcolepsy6-7, 1 abstention RejectedNo

Every vote total above is a reported tally. FDA had not published official minutes or a transcript for this meeting as of 2026-07-28. Rows marked with a have an unresolved abstention count or conflicting reporting; the detail is on each peptide's page.

The gap between what FDA reviewed and what clinics advertise

This is the part of the story that has been largely missed. FDA did not assess these peptides as general wellness or recovery products. It assessed each one against a narrow clinical need — and in several cases that need has almost nothing to do with why people actually buy them.

BPC-157
FDA reviewed it for: Ulcerative colitis
FDA did not evaluate BPC-157 for injury repair, tendon or ligament healing, post-surgical recovery, Crohn's disease, celiac disease or tendonitis — the uses that drive most consumer demand.
KPV
FDA reviewed it for: Wound healing and inflammatory conditions
This was not a review of KPV for general wellness, longevity, anti-aging or gut-health use.
TB-500
FDA reviewed it for: Wound healing
FDA did not review TB-500 as a sports-recovery, muscle-growth, injury-repair or performance product.
MOTS-c
FDA reviewed it for: Obesity and osteoporosis
FDA did not evaluate MOTS-c for longevity, mitochondrial health, athletic performance or general metabolic optimization.
Semax
FDA reviewed it for: Cerebral ischemia, migraine and trigeminal neuralgia
FDA did not review Semax for cognition, focus, nootropic use, ADHD or athletic performance — the uses it is most often marketed for online.
Epitalon
FDA reviewed it for: Insomnia
The committee did not evaluate Epitalon as an anti-aging, longevity or telomere-extension therapy — which is how it is almost always marketed.

What has to happen before any of this changes

  1. 1FDA completes its own evaluation. The advisory vote is non-binding — FDA can accept or reject it.
  2. 2FDA publishes a proposed rule in the Federal Register identifying substances proposed for inclusion or exclusion, with its reasoning.
  3. 3A public comment period opens. Anyone may submit evidence and scientific or legal objections.
  4. 4FDA reviews the comments and the administrative record.
  5. 5FDA publishes a final rule, or withdraws or modifies the proposal.
  6. 6The final rule takes effect and amends the list at 21 CFR 216.23.

Existing 503A list proceedings have taken years to run from proposed rule to final rule. Until a final rule takes effect, a favorable recommendation is not list status. FDA can also decline to follow the committee entirely.

What happens next

FDA has signalled another PCAC meeting before the end of february 2027 to consider five more peptides:

LL-37GHK-CuDihexa acetateMelanotan IIPEG-MGF

The exact date remains TBD — no dated entry appeared on FDA's advisory committee calendar as of 2026-07-28.

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Primary sources

Every status on this page traces to FDA's own briefing documents or the Code of Federal Regulations. We link them directly so you can check us.

Medical Disclaimer: This content is for informational purposes only and should not be considered medical advice. Always consult with a qualified healthcare provider before beginning any peptide therapy treatment.