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Best Peptides to Reverse Aging Ranked: Mechanism Comparison
| Peptide | Primary Aging Target | Mechanism of Action | Clinical Evidence Strength | Typical Cycle Duration | Maintenance Requirement | Professional Assessment ||—|—|—|—|—|—|| Thymalin | Immune senescence | Restores thymic epithelial function; increases naive
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This page preserves a source comparison for education. It does not add a rating, recommendation or clinical judgment.
- | Peptide | Primary Aging Target | Mechanism of Action | Clinical Evidence Strength | Typical Cycle Duration | Maintenance Requirement | Professional Assessment ||—|—|—|—|—|—|| Thymalin | Immune senescence | Restores thymic epithelial function; increases naive T-cell production | High. Multiple human RCTs show 20–37% immune marker improvement | 10 injections over 3 weeks | Every 6–12 months | Best evidence for systemic immune rejuvenation; effects measurable via flow cytometry || Epithalon | Telomere attrition | Activates telomerase; extends telomeric DNA length | Moderate. Peer-reviewed human data, limited replication | 10–20 days | Every 6 months | Only peptide with published telomere lengthening data in humans; mechanism biologically plausible || GHK-Cu | Tissue degradation, DNA damage | Modulates 4,000+ genes; stimulates collagen synthesis and DNA repair enzymes | High. Extensive dermatological and wound healing studies | 8–12 weeks | Continuous low-dose or 3-month cycles | Stronge