Tripeptide-29 vs Thymagen
Side-by-side comparison of key properties, dosing, and research.
Skin & CosmeticAnti-Aging & Longevity
Tripeptide-29Immune Support
Thymagen- Summary
- Tripeptide-29 is a pro-collagen cosmetic peptide composed of proline, hydroxyproline, and glycine — the core repeating unit of collagen. Applied topically, it signals dermal fibroblasts that collagen degradation has occurred, triggering compensatory new collagen synthesis.
- Thymagen is a dipeptide bioregulator (Glu-Asp) developed by Professor Vladimir Khavinson, tissue-specific for the thymus gland. It supports T-lymphocyte maturation, thymic function, and immune system normalization. As the thymus involutes with age (thymic atrophy), immune competence declines. Thymagen is used to support immune restoration, particularly in aging, post-illness recovery, and immunodeficiency states.
- Half-Life
- Not applicable (topical)
- Short (minutes); sustained gene-regulatory effects
- Admin Route
- Topical
- SubQ, Oral
- Research
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- Typical Dose
- 0.01-0.1% in formulation
- 10 mg per day
- Frequency
- Once or twice daily
- Daily for 10–30 days
- Key Benefits
- Stimulates fibroblast collagen synthesis via damage-signal mechanism
- Reduces fine lines and improves skin smoothness
- Supports dermal matrix integrity
- Naturally bioidentical to collagen fragment sequences
- Well-tolerated in all skin types
- Synergistic with copper peptides and retinoids
- Supports thymic epithelial cell function and T-cell maturation
- May partially restore thymic output reduced by age-related atrophy
- Normalizes T-lymphocyte subpopulation balance
- Supports immune recovery after illness, surgery, or chemotherapy
- Anti-aging effects on thymic tissue
- Complementary to Thymosin Alpha-1 and Thymalin in immune protocols
- May improve vaccine responsiveness in older individuals
- Side Effects
- Excellent tolerability profile
- No documented significant adverse effects at cosmetic concentrations
- Rare sensitivity reactions in individuals with peptide allergies
- Generally well tolerated
- Mild injection site reactions
- No significant immunological adverse events reported
- Stacks With
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