Ipamorelin vs Thymosin Alpha-1
Side-by-side comparison of key properties, dosing, and research.
Growth Hormone Peptides
IpamorelinImmune SupportAnti-Aging & Longevity
Thymosin Alpha-1- Summary
- Ipamorelin is a selective GHRP (growth hormone releasing peptide) and one of the cleanest GH secretagogues available. It selectively stimulates GH release without significantly raising cortisol, prolactin, or appetite — making it ideal for long-term use and anti-aging protocols.
- 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.
- Half-Life
- 2 hours
- 2–3 hours
- Admin Route
- SubQ
- SubQ
- Research
- —
- —
- Typical Dose
- 100–300 mcg
- 0.8–1.6 mg
- Frequency
- Once to twice daily
- Twice weekly
- Key Benefits
- Increases lean muscle mass
- Enhances fat loss
- Improves recovery time
- Strengthens bones and joints
- Better sleep quality and REM sleep
- Enhanced skin elasticity
- Minimal impact on hunger or cortisol
- No cortisol or prolactin spike
- Clean GH release suitable for long-term protocols
- 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
- Side Effects
- Injection site irritation
- Temporary water retention (mild)
- Possible hunger increase (milder than GHRP-6)
- Numbness or tingling in extremities (rare)
- Injection site irritation
- Mild flu-like symptoms initially (immune activation)
- Fatigue (rare)
- Stacks With
- —
- —