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ToolsCompareThymagen vs Pal-AHK

Thymagen vs Pal-AHK

Side-by-side comparison of key properties, dosing, and research.

Immune Support
Thymagen
Skin & CosmeticAnti-Aging & Longevity
Pal-AHK
Summary
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.
Pal-AHK is the palmitoylated form of the AHK-Cu copper tripeptide, created by attaching a palmitic acid chain to enhance skin penetration and lipid bilayer affinity. The palmitoyl modification significantly improves dermal bioavailability compared to unmodified AHK, making it particularly effective in anti-aging and hair growth formulations.
Half-Life
Short (minutes); sustained gene-regulatory effects
Extended (lipid depot effect in stratum corneum)
Admin Route
SubQ, Oral
Topical
Research
Typical Dose
10 mg per day
0.01–0.05% in formulation
Frequency
Daily for 10–30 days
Once or twice daily
Key Benefits
  • 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
  • Enhanced skin penetration vs. unmodified AHK-Cu
  • Stimulates dermal collagen and elastin production
  • Promotes hair follicle anagen phase
  • Antioxidant and wound healing activity
  • Firming and plumping effect on aging skin
  • Improved bioavailability via lipid bilayer incorporation
Side Effects
  • Generally well tolerated
  • Mild injection site reactions
  • No significant immunological adverse events reported
  • Generally well-tolerated
  • Mild irritation at high concentrations in sensitive skin
  • Possible comedogenicity at very high palmitate concentrations (formulation-dependent)
Stacks With