Ipamorelin vs Matrixyl
Side-by-side comparison of key properties, dosing, and research.
Growth Hormone Peptides
IpamorelinSkin & Cosmetic
Matrixyl- 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.
- Matrixyl is the most widely used collagen-stimulating cosmetic peptide. As a matrikine — a fragment of type I procollagen — it signals skin cells to synthesize new collagen, elastin, and fibronectin, reducing wrinkle depth and improving skin firmness and elasticity.
- Half-Life
- 2 hours
- N/A — topical; sustained signaling effects on fibroblasts persist beyond single application
- Admin Route
- SubQ
- Topical
- Research
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- Typical Dose
- 100–300 mcg
- 3–8% concentration
- Frequency
- Once to twice daily
- Once or twice daily
- 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
- Stimulates collagen I, III, and IV synthesis
- Increases fibronectin and glycosaminoglycan production
- Reduces wrinkle depth and length by 27–68% (studies)
- Improves skin firmness and elasticity
- Reduces dark circles and undereye bags
- Synergistic with retinol, vitamin C, and growth factors
- Suitable for all skin types including sensitive
- Well-studied with published clinical data
- Side Effects
- Injection site irritation
- Temporary water retention (mild)
- Possible hunger increase (milder than GHRP-6)
- Numbness or tingling in extremities (rare)
- Exceptional safety profile
- Non-irritating, suitable for sensitive skin
- No known adverse effects at cosmetic concentrations
- Stacks With
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