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Best Peptides for DNA Damage Repair: Mechanism Comparison
Thymalin Thymic immune restoration; upregulates OGG1, XRCC1 Base excision repair (BER) + immune surveillance 35–40% thymic mass restoration in aged rats (Biogerontology, 2018); increased DNA repair gene expression Subcutaneous injection, 10–20mg per cycle Best
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- Thymalin
- Thymic immune restoration; upregulates OGG1, XRCC1
- Base excision repair (BER) + immune surveillance
- 35–40% thymic mass restoration in aged rats (Biogerontology, 2018); increased DNA repair gene expression
- Subcutaneous injection, 10–20mg per cycle
- Best for immune-mediated clearance of mutation-heavy cells; indirect repair support
- Cartalax (Ala-Glu-Asp)
- Mitochondrial DNA stabilization via TFAM upregulation
- Mitochondrial DNA repair
- 28% reduction in 8-OHdG oxidative damage marker in liver mitochondria (Rejuvenation Research, 2015)
- Oral or subcutaneous, 5–10mg daily
- Strongest evidence for mitochondrial genome protection; critical in high metabolic tissues
- Epithalon (Ala-Glu-Asp-Gly)
- Telomerase activation; telomere extension
- Telomere maintenance
- 33% increase in telomerase activity in human fibroblasts; extended mean telomere length in mice (St. Petersburg Institute)
- Subcutaneous injection, 5–10mg per cycle
- Prevents erosion-driven instability; not classical repair but prevents senescence triggers
- KPV (Lys-Pro-Val)
- NF-κB inhibition; reduces inflammation-driven ROS
- Indirect genoprotection
- 40% reduction in DNA strand breaks in colitis models via comet assay (Peptides, 2020)
- Oral or subcutaneous, 500mcg–2mg daily
- Preventive; lowers damage rate rather than fixing existing lesions; best in chronic inflammation