Understand the source comparison
Best Peptides for Aging Prevention: Mechanism Comparison
Thymalin Thymic epithelial cell activation → T-cell maturation and thymulin secretion Immunosenescence and declining adaptive immunity 5–10mg subcutaneous, 10-day cycles Subcutaneous injection after reconstitution in bacteriostatic water Lyophilised powder at
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- Thymalin
- Thymic epithelial cell activation → T-cell maturation and thymulin secretion
- Immunosenescence and declining adaptive immunity
- 5–10mg subcutaneous, 10-day cycles
- Subcutaneous injection after reconstitution in bacteriostatic water
- Lyophilised powder at −20°C; reconstituted solution 2–8°C, use within 7 days
- Most direct intervention for age-related immune decline; requires strict cold chain maintenance
- MK-677
- Ghrelin receptor agonism → pulsatile GH and IGF-1 elevation without HPTA suppression
- Somatopause and anabolic hormone decline
- 12.5–25mg oral daily
- Oral administration (capsule or solution)
- Room temperature (15–25°C) in sealed container away from moisture
- Safest growth hormone pathway intervention; no injection required; consistent IGF-1 elevation across trials
- Cerebrolysin
- Neurotrophic peptide receptor activation → synaptic plasticity and neuroinflammation reduction
- Neurodegeneration and cognitive decline
- 10–30mL IV infusion, 5 days/week for 4 weeks
- Intravenous infusion over 20–60 minutes
- Refrigerated 2–8°C, protected from light
- Most extensively studied for cognitive aging; requires clinical administration; IV route non-negotiable for efficacy