Thymosin Alpha-1 vs CJC-1295
Side-by-side comparison of key properties, dosing, and research.
Immune SupportAnti-Aging & Longevity
Thymosin Alpha-1Growth Hormone Peptides
CJC-1295- Summary
- Thymosin Alpha-1 is a naturally occurring 28-amino acid peptide derived from the thymus gland. It is a powerful immune modulator approved in many countries for treating chronic hepatitis B, hepatitis C, and as an adjunct in cancer immunotherapy.
- 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.
- Half-Life
- 2–3 hours
- ~30 minutes (No DAC) / 6–8 days (with DAC)
- Admin Route
- SubQ
- SubQ
- Research
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- Typical Dose
- 0.8–1.6 mg
- 100 mcg
- Frequency
- Twice weekly
- Once daily, before bed
- Key Benefits
- Enhances T-cell and NK cell activity
- Supports recovery from viral and bacterial infections
- May reduce inflammation systemically
- Supports healthy aging and immune resilience
- Improves vaccine response
- Supports liver health
- May help with chronic fatigue syndrome and post-viral conditions
- Approved in multiple countries for hepatitis B and C treatment
- 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
- Side Effects
- Injection site irritation
- Mild flu-like symptoms initially (immune activation)
- Fatigue (rare)
- Water retention / puffiness
- Carpal tunnel syndrome (with prolonged use)
- Injection site irritation
- Hunger increase (minor)
- +1 more
- Stacks With
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