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Ranked Guide · 2026

Best Peptides for Longevity and Anti-Aging

Longevity peptide therapy targets the foundational mechanisms of cellular aging: NAD+ depletion, telomere attrition, mitochondrial dysfunction, and impaired DNA repair. The compounds on this list each address a different hallmark of aging, making them complementary rather than redundant — most longevity-focused patients stack 2-3 protocols simultaneously under physician supervision. Clinical evidence varies by compound. NAD+ has the strongest research base; Epitalon, MOTS-c, and SS-31 have more limited human data but compelling preclinical findings.

Medically reviewed by Dr. Mohammad Laeeq, MD · May 2026
  1. 1
    NAD+ Injection
    $279/mo

    Most-studied longevity intervention. NAD+ levels decline 50-70% by the seventh decade, driving mitochondrial dysfunction and impaired DNA repair. Direct injection delivers what oral precursors can't.

    Best for: Foundational longevity protocol for adults 40+. Stack with NMN or GHK-Cu.
    See full NAD+ Injection protocol
  2. 2
    GHK-Cu (Injectable)
    $179/mo

    Copper peptide with the most-documented effects on skin, hair, and tissue regeneration. Modulates over 4,000 genes back toward a younger expression profile in Pickart's gene array studies.

    Best for: Skin and hair quality, wound healing, and systemic anti-aging support.
    See full GHK-Cu (Injectable) protocol
  3. 3
    Epithalon
    $289/mo

    Tetrapeptide that activates telomerase. Khavinson's 25+ years of Russian research showed life-extension effects in animals and improvements in mortality in older adults.

    Best for: Foundational longevity cycles (10-20 days, repeated 2-3x yearly).
    See full Epithalon protocol
  4. 4
    MOTS-c
    $269/mo

    Mitochondrially-encoded peptide that regulates metabolic homeostasis and acts as an exercise mimetic. Reverses insulin resistance and improves metabolic flexibility.

    Best for: Patients with insulin resistance, metabolic syndrome, or sedentary lifestyle.
    See full MOTS-c protocol
  5. 5
    SS-31 (Elamipretide)
    $429/mo

    Targets cardiolipin in the inner mitochondrial membrane, restoring electron-transport-chain efficiency. Most-promising mitochondrial-membrane therapy in clinical development.

    Best for: Patients with fatigue, cardiovascular concerns, or known mitochondrial dysfunction.
    See full SS-31 (Elamipretide) protocol

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FAQ

When should I start longevity peptides?

Most longevity physicians recommend starting in the late 30s to early 40s, when measurable biomarker decline begins. Earlier intervention prevents accumulation rather than reversing it.

Can I stack longevity peptides?

Yes, and stacking is the norm. NAD+ + GHK-Cu is the most common combination. Add Epitalon as a cycled intervention 2-3 times yearly. MOTS-c and SS-31 are added based on labs and goals.

Do longevity peptides actually extend lifespan?

Lifespan extension in humans is by definition decades to test. Current evidence is strongest for surrogate markers: NAD+ restoration, telomere maintenance, mitochondrial function, and inflammatory markers. Treat longevity therapy as healthspan optimization, not guaranteed lifespan extension.

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The assessment process available on the [pepti] website asks a series of medical questions, and the answers provided are reviewed by an independent licensed physician affiliated with our partner physician network. The licensed providers have established exclusionary criteria, and the answers provided determine if the individual is screened out of eligibility for treatment. The licensed clinicians retain the sole decision to prescribe peptide therapy and other compounded medications to patients. Treatment may be denied at the physician's sole discretion. If a prescription is not approved, you will not be charged for the medication.

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