Thymagen vs Sermorelin
Side-by-side comparison of key properties, dosing, and research.
Immune Support
ThymagenGrowth Hormone PeptidesAnti-Aging & Longevity
Sermorelin- 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.
- Sermorelin is a bioidentical synthetic peptide comprising the first 29 amino acids of naturally occurring GHRH. It is FDA-approved for diagnostic use and widely prescribed off-label for anti-aging, stimulating growth hormone production in a natural pulsatile pattern that mimics the body's own rhythm.
- Half-Life
- Short (minutes); sustained gene-regulatory effects
- 10–20 minutes
- Admin Route
- SubQ, Oral
- SubQ
- Research
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- Typical Dose
- 10 mg per day
- 200–500 mcg
- Frequency
- Daily for 10–30 days
- 5–7 days per week
- 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
- Increases energy and vitality
- Improves body composition (more muscle, less fat)
- Enhances skin thickness and elasticity
- Strengthens immune system
- Improves sleep quality and REM sleep
- Supports bone density
- Enhances mental clarity and focus
- Safer than exogenous HGH — respects natural feedback loops
- FDA-approved for GH diagnostic use
- Side Effects
- Generally well tolerated
- Mild injection site reactions
- No significant immunological adverse events reported
- Injection site irritation
- Flushing
- Headache
- Dizziness
- +2 more
- Stacks With
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