Nonapeptide-1 vs Thymagen
Side-by-side comparison of key properties, dosing, and research.
Skin & Cosmetic
Nonapeptide-1Immune Support
Thymagen- Summary
- Nonapeptide-1 is a synthetic 9-amino acid peptide that inhibits melanin production by blocking α-MSH (alpha-melanocyte stimulating hormone) receptor binding. Used in cosmetic formulations for skin lightening and evening skin tone, it is particularly effective for UV-induced and hormonal hyperpigmentation.
- 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
- —
- —
- Typical Dose
- 0.05–0.5% concentration in formulation
- 10 mg per day
- Frequency
- Twice daily
- Daily for 10–30 days
- Key Benefits
- Inhibits UV-induced tanning and hyperpigmentation
- Reduces hormonal melasma
- Evens skin tone at receptor level
- Well-tolerated with minimal irritation
- Complementary to tyrosinase inhibitors for enhanced brightening
- Reduces post-inflammatory hyperpigmentation
- 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
- Generally very well-tolerated
- Rare contact sensitivity in susceptible individuals
- Theoretical risk of excessive depigmentation with prolonged high-concentration use
- Generally well tolerated
- Mild injection site reactions
- No significant immunological adverse events reported
- Stacks With
- —
- —