Longevity Medicine

    What Is Peptide Therapy?

    Last reviewed: May 2026 · Haute MD Editorial Team

    Peptide therapy uses short chains of amino acids that act as biological signaling molecules directing specific cellular functions. Common longevity peptides include BPC-157 (tissue repair), CJC-1295/Ipamorelin (GH secretion), PT-141 (sexual function), Thymosin Alpha-1 (immune modulation), and GLP-1 peptides (metabolic health).

    Categories of longevity peptides

    Tissue repair (BPC-157, TB-500), growth hormone secretagogues (CJC-1295, Ipamorelin, Tesamorelin), immune (Thymosin Alpha-1), and metabolic (GLP-1 receptor agonists such as semaglutide and tirzepatide).

    Regulatory considerations

    Many peptides are available only through compounding pharmacies and the regulatory landscape changes frequently. Work with a licensed physician who follows current FDA guidance to ensure safe sourcing.

    Frequently Asked Questions

    Are peptides FDA-approved?

    Some peptides (such as semaglutide and tirzepatide) are FDA-approved for specific indications. Others are used off-label or via compounding pharmacies.

    Are peptides safe?

    When prescribed and monitored by a qualified physician using pharmaceutical-grade sources, peptides have a favorable safety profile. Self-administered peptides from unverified sources carry significant risk.

    How are peptides administered?

    Most longevity peptides are administered via subcutaneous injection. Some are available as oral, nasal spray, or topical formulations.

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