Extending healthspan — the period of life spent in good health — requires slowing the cellular hallmarks of aging: telomere attrition, mitochondrial dysfunction, epigenetic drift, cellular senescence, and stem cell exhaustion. Peptide research offers interventions that address multiple aging pathways simultaneously, with a growing evidence base from both animal longevity studies and human biomarker research.
1. Epithalon — Telomere Extension / Pineal Aging
Epithalon is the most studied anti-aging peptide, with over 30 years of research primarily from the St. Petersburg Institute of Bioregulation. It activates telomerase in somatic cells — extending telomeres and reducing cellular senescence — normalizes pineal melatonin secretion, reduces cancer incidence in aging animal models, and has demonstrated lifespan extension in multiple species.
Dosing Protocol: 5–10 mg SubQ daily for 10-day courses, 2–4x per year. Some longevity researchers use 20-day courses twice yearly.
2. GHK-Cu — Epigenetic Rejuvenation
GHK-Cu activates over 4,000 human genes in aging skin — restoring gene expression patterns toward a younger phenotype. It promotes collagen and elastin synthesis, activates antioxidant defense genes, and reduces the expression of inflammatory aging genes. GHK-Cu plasma levels decline dramatically with age, making restoration a high-value longevity intervention.
Dosing Protocol: 1–2 mg SubQ daily for systemic effects. Topical application for skin rejuvenation. Continuous long-term use supported by safety data.
3. MOTS-C — Mitochondrial Longevity / AMPK
MOTS-C is a mitochondria-derived peptide that declines with age and regulates metabolic homeostasis through AMPK activation. Higher MOTS-C levels are associated with longevity in centenarians. It reduces mitochondrial ROS, improves metabolic flexibility, and mimics many of the cellular effects of caloric restriction — one of the most validated longevity interventions.
Dosing Protocol: 5–10 mg SubQ 3–5x per week. Cycle: 4–8 weeks with breaks. Longevity dosing protocols still emerging.
4. SS-31 (Elamipretide) — Mitochondrial Membrane Protection
SS-31 targets cardiolipin on the inner mitochondrial membrane — a phospholipid that deteriorates with aging and drives mitochondrial dysfunction. By protecting cardiolipin, SS-31 restores mitochondrial cristae structure, improves ATP production efficiency, and reduces ROS generation. It has demonstrated significant rejuvenation of aged tissue function in multiple organ systems.
Dosing Protocol: 1–5 mg SubQ daily. Clinical studies use 0.05–0.25 mg/kg IV. SubQ daily protocols being established in longevity research.
Epithalon addresses the telomere and pineal aging that drives cellular senescence and circadian disruption. GHK-Cu reverses epigenetic aging in the skin and activates cellular repair genes. MOTS-C restores mitochondrial metabolic health and the AMPK longevity pathway. SS-31 protects mitochondrial membrane integrity — ensuring every cell has the energy infrastructure for sustained health.
- Khavinson VKh et al. (2003). Epithalon telomere effects. Neuroendocrinology Letters.
- Pickart L et al. (2018). GHK-Cu gene expression and aging. Int J Mol Sci.
- Lee C et al. (2023). MOTS-C centenarians and longevity. Nature Medicine.
- Szeto HH et al. (2014). SS-31 mitochondrial protection. J Mol Cell Cardiol.
Research Use Only. All information on this page is for educational purposes only and is not medical advice. PepSherpa does not sell peptides. Consult a licensed healthcare provider before making any health decisions. Many of the studies cited are preclinical (animal/in-vitro).