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Last updated: October 19, 2026

Peptide FDA Compounding Status Tracker 2026 — Complete 503A Guide

Your definitive, regularly-updated reference for every peptide’s FDA compounding status under Section 503A. Access to therapeutic peptides — from BPC-157 to Sermorelin — hinges on evolving decisions by the FDA and the Pharmacy Compounding Advisory Committee (PCAC). We monitor every category change, PCAC hearing date, and enforcement update so you don’t have to. Bookmark this page and check back monthly — or around scheduled PCAC meetings — for the latest on which peptides can be legally compounded, which face restrictions, and what’s next.

Latest Updates

The most recent regulatory developments affecting peptide compounding.

Critical UpdateJuly 23–24, 2026

PCAC Votes to Recommend 6 of 7 Peptides — Final FDA Action Still Pending

The Pharmacy Compounding Advisory Committee voted to recommend adding six peptides (free base and acetate forms) to the 503A Bulks List, going against FDA staff, whose briefing documents had proposed that none of the seven be added. The committee voted against emideltide (DSIP). The votes are advisory: none of these peptides is on the 503A Bulks List yet, and FDA must complete notice-and-comment rulemaking before pharmacies can compound them under that list, a process expected to run into 2027.

  • BPC-157 — recommended, 8 yes / 6 no / 1 abstain
  • KPV — recommended, 8 / 6 / 1
  • TB-500 — recommended, 8 / 6 / 1
  • MOTS-c — recommended, 7 / 5 / 2
  • Semax — recommended, 8 / 5 / 1
  • Epitalon — recommended, 7 / 4 / 1
  • Emideltide (DSIP) — not recommended, 6 yes / 7 no / 1 abstain
FDA PCAC page →
Critical UpdateJuly 1, 2026

Second PCAC Meeting Announced — February 2027

The FDA has announced a new PCAC meeting before the end of February 2027 to review five additional peptides for possible inclusion on the 503A bulks list. This is a significant shift — LL-37, Dihexa, Melanotan II, and PEG-MGF were all previously in a “withdrawn, no active review” state, and are now being reconsidered.

  • Cathelicidin LL-37 — scheduled for Feb 2027 PCAC (previously not on any active agenda)
  • GHK-Cu — confirmed for Feb 2027 PCAC (Category 1 for non-injectable routes)
  • Dihexa acetate — scheduled for Feb 2027 PCAC (previously withdrawn)
  • Melanotan II — scheduled for Feb 2027 PCAC (previously withdrawn)
  • PEG-MGF — scheduled for Feb 2027 PCAC (previously withdrawn)
FDA meeting page →
Notable UpdateJune 29, 2026

New PCAC Committee Members Named

Per STAT News reporting (June 29, 2026), the FDA has named eight new panelists to the Pharmacy Compounding Advisory Committee.

  • A majority are involved with businesses that promote or prescribe peptides
  • Includes pharmacist Bobby Harshbarger (son of Rep. Diana Harshbarger, R-TN)
  • Ethics concerns have been raised about potential conflicts of interest
  • The composition suggests the committee may lean more favorably toward allowing peptide compounding
STAT News →

1PCAC & Regulatory Timeline

The July 2026 hearings are done; what matters now is FDA rulemaking on the six peptides the committee recommended, and the second PCAC meeting before the end of February 2027. A committee vote is advisory; a peptide is only on the 503A Bulks List once FDA issues a final rule.

  1. Late 2026 – 2027Watch
    FDA Rulemaking on the Six Recommended Peptides

    FDA must publish a proposed rule in the Federal Register and take public comment before any recommended peptide is added to the 503A Bulks List. The committee's votes are advisory; FDA can still decline to list a substance.

    BPC-157KPVTB-500MOTs-CSemaxEpitalon
  2. July 23, 2026Held
    PCAC Meeting — Day 1

    Committee voted to recommend all four for the 503A Bulks List (BPC-157, KPV and TB-500 8–6 with 1 abstention; MOTS-c 7–5 with 2 abstentions), against FDA staff's proposal.

    BPC-157KPVMOTs-CTB-500
  3. July 24, 2026Held
    PCAC Meeting — Day 2

    Committee recommended Semax (8–5–1) and Epitalon (7–4–1); voted against emideltide/DSIP (6–7–1).

    Emideltide (DSIP)EpitalonSemax
  4. Before February 2027Announced
    Second PCAC Meeting — Additional Peptides

    FDA has announced a second PCAC meeting to review five more peptides for possible 503A inclusion. LL-37, Dihexa, Melanotan II, and PEG-MGF were previously withdrawn with no active review — now reconsidered. Exact date TBD (before the end of February 2027).

    Cathelicidin LL-37GHK-CuDihexa AcetateMelanotan IIPEG-MGF

2Peptides Under FDA Review — Full Status Table

All peptides currently under FDA review for 503A compounding eligibility. Use the color-coded badges to identify each peptide’s review stage. Peptides removed from Category 2 and sent to PCAC are listed first, followed by Category 1 peptides still under standard evaluation.

← Scroll to see all columns →

PeptideCategoryStatusPCAC DateForms Under ReviewKey Use CaseNotes
Removed from Category 2 → PCAC Review
BPC-157PCACPCAC: Recommended 8–6Jul 23, 2026BPC-157 acetate, BPC-157 free baseGut healing, tissue repairPCAC voted 8–6 (1 abstain) to recommend; FDA staff opposed. Not on the 503A Bulks List until FDA rulemaking.
KPVPCACPCAC: Recommended 8–6Jul 23, 2026KPV acetate, KPV free baseAnti-inflammatory, gut healthPCAC voted 8–6 (1 abstain) to recommend; FDA staff opposed. Rulemaking pending.
MOTs-CPCACPCAC: Recommended 7–5Jul 23, 2026MOTs-C acetate, MOTs-C free baseMetabolic health, exercise mimeticPCAC voted 7–5 (2 abstain) to recommend; FDA staff opposed. Rulemaking pending.
TB-500 (Thymosin Beta-4 Fragment)PCACPCAC: Recommended 8–6Jul 23, 2026TB-500 acetate, TB-500 free baseTissue repair, recoveryPCAC voted 8–6 (1 abstain) to recommend; FDA staff opposed. Rulemaking pending.
Emideltide (DSIP)PCACPCAC: Not RecommendedJul 24, 2026Emideltide acetate, Emideltide free baseSleep regulationPCAC voted 6–7 (1 abstain) against adding it to the 503A Bulks List.
EpitalonPCACPCAC: Recommended 7–4Jul 24, 2026Epitalon acetate, Epitalon free baseAnti-aging, telomere supportPCAC voted 7–4 (1 abstain) to recommend; FDA staff opposed. Rulemaking pending.
SemaxPCACPCAC: Recommended 8–5Jul 24, 2026Semax acetate, Semax free baseCognitive enhancementPCAC voted 8–5 (1 abstain) to recommend; FDA staff opposed. Rulemaking pending.
GHK-CuPCACFeb 2027 PCACFeb 2027GHK-Cu (injectable + non-injectable)Skin rejuvenation, wound healingConfirmed for Feb 2027 PCAC; Category 1 for non-injectable routes
Cathelicidin LL-37PCACFeb 2027 PCACFeb 2027Cathelicidin LL-37Antimicrobial peptideScheduled for Feb 2027 PCAC; previously withdrawn (safety concerns re: male reproduction, protumorigenic) — now reconsidered
Dihexa AcetatePCACFeb 2027 PCACFeb 2027Dihexa AcetateCognitive, neuroprotectionScheduled for Feb 2027 PCAC; previously withdrawn (no human exposure data) — now reconsidered
PEG-MGFPCACFeb 2027 PCACFeb 2027PEG-MGFMuscle growth, recoveryScheduled for Feb 2027 PCAC; previously withdrawn (MGF in Category 3) — now reconsidered
Melanotan IIPCACFeb 2027 PCACFeb 2027Melanotan IITanning, sexual functionScheduled for Feb 2027 PCAC; previously withdrawn (melanoma / PRES / priapism concerns) — now reconsidered
Category 1 — Under Evaluation (FDA list, May 14, 2026)
GHK-Cu (non-injectable)Cat 1Under Eval → PCACFeb 2027GHK-Cu (except injectable routes)Skin, wound healingRemoved Apr 22, 2026 when nominations were withdrawn; re-added for non-injectable routes after a nominator clarified. PCAC before end of Feb 2027.
Vasoactive Intestinal Peptide (VIP)Cat 1Under Evaluation—Vasoactive Intestinal PeptideInflammatory and pulmonary research28-amino-acid neuropeptide
NAD+Cat 1Under Evaluation—Nicotinamide Adenine Dinucleotide (NAD); NADHCellular energy, longevityCoenzyme, not a peptide
GlutathioneCat 1Under Evaluation—GlutathioneAntioxidantTripeptide antioxidant
Enclomiphene CitrateCat 1Under Evaluation—Enclomiphene CitrateTestosterone, fertilitySelective estrogen receptor modulator (SERM); not a peptide
Alpha Lipoic AcidCat 1Under Evaluation—Alpha Lipoic AcidAntioxidant, neuropathyNot a peptide
Category 2 — Significant Safety Risks (FDA list, May 14, 2026)
Ibutamoren (MK-677)Cat 2Safety Concerns—Ibutamoren MesylateGH secretagogueOral non-peptide ghrelin-receptor agonist; not eligible for 503A compounding while in Category 2
Kisspeptin-10Cat 2Safety Concerns—Kisspeptin-10Reproductive healthListed in Category 2 on FDA's May 14, 2026 list
Not on FDA's 503A Category List
IpamorelinNot listedNo 503A category—Ipamorelin acetateGH releaseNot in Category 1, 2 or 3 on FDA's May 14, 2026 list; confirm availability with your compounding pharmacy
CJC-1295Not listedNo 503A category—CJC-1295 (with/without DAC)GH releasePlaced in Category 2 in 2023; nominations later withdrawn, and it no longer appears on FDA's list
SelankNot listedNo 503A category—SelankAnxiety, cognitionNot on FDA's May 14, 2026 category list
Thymosin Alpha-1Not listedNo 503A category—Thymosin Alpha-1Immune modulationApproved outside the U.S. as Zadaxin®; not on FDA's May 14, 2026 category list
Nicotinamide Mononucleotide (NMN)Not listedNo 503A category—NMNLongevityNAD+ precursor; not on FDA's May 14, 2026 category list
SermorelinNot listedFormerly FDA-approved—Sermorelin acetateGH releasePreviously approved as Geref®; FDA found it was not withdrawn for safety or effectiveness reasons (Federal Register, Mar 4, 2013). Not on the 503A category list
PT-141 (Bremelanotide)Not listedFDA-approved drug—BremelanotideHypoactive sexual desire disorderFDA-approved as Vyleesi® for premenopausal women with acquired, generalized HSDD
OxytocinNot listedFDA-approved drug—OxytocinObstetric use (approved)FDA-approved (Pitocin®); other uses are off-label
Low Dose NaltrexoneNot listedFDA-approved drug—NaltrexoneOff-label immune modulationNaltrexone is FDA-approved; low-dose use is off-label

3Understanding FDA 503A Categories

The FDA uses a category system to organize bulk drug substances nominated for compounding under Section 503A. Here’s what each means for peptide access.

📋 Category 1

Under Evaluation. Nominated and under review. Pharmacies can continue to compound Category 1 substances with a valid prescription while the FDA evaluates.

⚠️ Category 2

Safety Concerns Flagged. Potential safety/quality issues identified. Restricted compounding; referred to PCAC for a formal hearing.

🚫 Category 3

Inadequate Nomination. Nominated without adequate evidence. Not eligible for 503A compounding unless re-nominated with sufficient data.

🏛️ PCAC Review

Advisory Committee Hearing. Public hearings review clinical evidence and recommend to the FDA whether substances should be approved or denied.

What does “Approved for 503A Compounding” mean?

When a substance is approved for 503A compounding, licensed pharmacies can legally prepare customized formulations for individual patients with a valid prescription. This is distinct from FDA-approved manufactured drugs — compounded medications are not FDA-approved products themselves, but are prepared under the framework governing pharmacy compounding. Approval ensures adequate safety, quality, and clinical evidence exists to support the substance’s use in patient care.

How PCAC hearings work

The PCAC follows a structured process: the FDA presents its safety and clinical review; public stakeholders submit testimony; and committee members discuss and vote on a recommendation. The FDA is not bound by PCAC recommendations but historically follows them in the majority of cases. Final determinations are typically issued weeks to months after the vote.

4What This Means for Patients

If you’re using — or considering — peptide therapy, here’s how to protect your access to care as the regulatory landscape evolves.

  • ✓If you’re currently using a peptide on this list, don’t panic. Category 1 peptides remain available through compounding pharmacies while under evaluation. For peptides the PCAC has voted on, a recommendation is not a listing: confirm current availability with your prescriber and compounding pharmacy before relying on it.
  • ✓Work only with legitimate 503A compounding pharmacies — state-licensed, FDA-registered pharmacies that compound pursuant to valid prescriptions. Avoid unregulated “research chemical” suppliers. Find a compounding pharmacy →
  • ✓Always work with a licensed prescribing provider. Peptide therapy requires medical oversight — lab monitoring, dosage adjustments, and follow-up — to ensure it’s safe and appropriate for you. Consult a peptide specialist →
  • ✓PCAC outcomes are not final until the FDA acts. Even after a recommendation, the FDA must issue a formal determination — there’s often a window between the hearing and final action where substances remain accessible.
  • ✓Engage in the public comment process. If a peptide you depend on is scheduled for review, submit a public comment to the FDA docket — patient testimonials carry weight. Check regulations.gov for open comment periods.

5In-Depth FDA Peptide Articles

Go deeper on specific peptides, PCAC mechanics, and what the 2026 decisions mean for patients and providers.

Are Peptides Legal? A State-by-State Guide for Prescribers (2026)

Are peptides legal? How FDA approval, 503A compounding, research-use-only rules and state pharmacy and medical boards decide what can be prescribed where.

Compounding Pharmacy Glossary: 503A, PCAB, USP and More Explained

Plain-language definitions of the terms that matter in compounding — 503A, 503B, PCAB, USP 795/797/800, bulks list, PCAC, BUD, COA, and more.

FDA 503A Update: The July 2026 PCAC Peptide Votes and What They Mean

FDA is proposing that BPC-157, KPV, TB-500, MOTS-c, Emideltide, Epitalon, and Semax NOT be added to the 503A Bulks List. Here's what physicians and compounders need to know.

BPC-157 and the 503A Bulks List: FDA's Review and the July 2026 PCAC Vote

FDA is proposing that BPC-157 (free base and acetate) NOT be added to the 503A Bulks List. Here's the characterization, effectiveness, and safety reasoning.

KPV and the 503A Bulks List: FDA's Review and the July 2026 PCAC Vote

FDA is proposing that KPV (free base and acetate) NOT be added to the 503A Bulks List. Here's the wound-healing and anti-inflammatory evidence review.

TB-500 and the 503A Bulks List: FDA's Review and the July 2026 PCAC Vote

FDA is proposing that TB-500 (free base and acetate) NOT be added to the 503A Bulks List. Here's the wound-healing evidence and safety reasoning.

MOTS-c and the 503A Bulks List: FDA's Review and the July 2026 PCAC Vote

FDA is proposing that MOTS-c (free base and acetate) NOT be added to the 503A Bulks List. Here's the metabolic-use evidence and safety review.

Emideltide (Delta Sleep-Inducing Peptide): FDA's Review and the PCAC Vote Against Listing

FDA is proposing that Emideltide (free base and acetate) NOT be added to the 503A Bulks List. Here's the insomnia and opioid-withdrawal evidence review.

Epitalon and the 503A Bulks List: FDA's Review and the July 2026 PCAC Vote

FDA is proposing that Epitalon (free base and acetate) NOT be added to the 503A Bulks List. Here's the insomnia and melatonin evidence review.

Semax and the 503A Bulks List: FDA's Review and the July 2026 PCAC Vote

FDA is proposing that Semax (free base and acetate) NOT be added to the 503A Bulks List. Here's the nootropic, analgesia, and safety review.

Is BPC-157 Legal in 2026? FDA Compounding Status Explained

If you have been searching "is BPC-157 legal in 2026," you are not alone. BPC-157 is one of the most widely used peptides in regenerative medicine, prized…

Is TB-500 Legal? FDA's July 2026 Decision Explained

The question "is TB-500 legal in 2026" has been on the minds of athletes, patients recovering from injuries, and anti-aging practitioners for months.…

What Is a PCAC Meeting? How the FDA Decides Which Peptides Can Be Compounded

If you have been following the FDA's recent peptide regulatory updates, you have probably encountered the acronym "PCAC" — the Pharmacy Compounding…

6Frequently Asked Questions

  • What is FDA 503A Category 1 for peptides?

    Category 1 substances are currently under evaluation by the FDA. While under review, these peptides can still be legally compounded by registered 503A pharmacies under a valid prescription. Category 1 status does not imply safety concerns — it simply means the FDA has not yet completed its review.

  • What is FDA 503A Category 2 for peptides?

    Category 2 substances have been flagged with potential safety or quality concerns. Compounding of these substances is restricted while they undergo further review by the Pharmacy Compounding Advisory Committee (PCAC). A PCAC hearing must take place before a final determination is made.

  • What did the July 2026 PCAC meeting decide?

    On July 23–24, 2026 the committee voted to recommend adding BPC-157, KPV, TB-500, MOTS-c, Semax and Epitalon (free base and acetate) to the 503A Bulks List, and voted against emideltide (DSIP). FDA staff had recommended against all seven. The votes are advisory; none of the seven is on the list until FDA completes rulemaking.

  • What is the PCAC and how does it affect peptide access?

    The Pharmacy Compounding Advisory Committee (PCAC) is an FDA advisory body that reviews nominated bulk drug substances for use in compounding. The PCAC holds public hearings, reviews clinical evidence, and makes recommendations to the FDA on whether substances should be approved for 503A compounding. Their recommendations heavily influence final FDA decisions on peptide availability.

  • Can I still get compounded peptides in 2026?

    Yes. Many peptides remain available through legitimate 503A compounding pharmacies under a valid prescription while they are under FDA evaluation (Category 1). Peptides in Category 2 or under active PCAC safety review may have restricted availability. Always work with a licensed prescribing provider and a registered compounding pharmacy.

  • What happens after PCAC reviews a peptide?

    The committee's vote is advisory. To add a substance to the 503A Bulks List, FDA must publish a proposed rule in the Federal Register, take public comment, and issue a final rule, which can take a year or more. FDA is not bound by the vote and can decline to list a substance. Until a final rule lists it, a recommended peptide is not on the 503A Bulks List.

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⚠ Medical & Regulatory Disclaimer

This page is for informational and educational purposes only and does not constitute medical advice, legal guidance, or an endorsement of any substance, product, or therapy. The regulatory status information is based on publicly available FDA documents and is subject to change without notice. Always consult a licensed healthcare provider before starting, stopping, or modifying any peptide therapy. Compounded medications are not FDA-approved products. For the most current information, refer to the FDA’s official compounding page.

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