CJC-1295 vs Thymulin
Side-by-side comparison of key properties, dosing, and research.
- Summary
- CJC-1295 is a synthetic GHRH analog that stimulates the pituitary gland to produce and release growth hormone. The DAC (Drug Affinity Complex) version has a markedly extended half-life. The No DAC version (Modified GRF 1-29) preserves natural pulsatile GH release and is preferred in most protocols.
- Thymulin is a nonapeptide hormone produced exclusively by the thymic epithelium. It requires zinc for biological activity and plays a critical role in T-lymphocyte maturation, differentiation, and immune regulation. Thymulin levels decline dramatically with age, contributing to immunosenescence.
- Half-Life
- ~30 minutes (No DAC) / 6–8 days (with DAC)
- ~30 minutes active half-life
- Admin Route
- SubQ
- SubQ
- Research
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- Typical Dose
- 100 mcg
- 20-30 mcg
- Frequency
- Once daily, before bed
- 10 days per month (Khavinson protocol)
- Key Benefits
- Sustained increase in growth hormone levels
- Enhanced muscle growth and strength
- Improved fat metabolism and body composition
- Better recovery and tissue repair
- Increased bone density
- Enhanced immune function
- Improved skin quality and collagen production
- Synergistic GH release when combined with GHRPs like Ipamorelin
- Enhances T-cell maturation and differentiation
- Boosts NK cell cytotoxic activity
- Reduces inflammatory cytokine production (TNF-α, IL-1)
- Anti-nociceptive (pain-reducing) properties
- Restores age-related immune decline
- Anti-inflammatory via serotonin pathway modulation
- Side Effects
- Water retention / puffiness
- Carpal tunnel syndrome (with prolonged use)
- Injection site irritation
- Hunger increase (minor)
- +1 more
- Injection site reactions
- Mild fatigue initially as immune system activates
- Stacks With
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