Tesamorelin vs Matrixyl
Side-by-side comparison of key properties, dosing, and research.
Growth Hormone PeptidesFat Loss & Metabolic
TesamorelinSkin & Cosmetic
Matrixyl- Summary
- Tesamorelin is an FDA-approved synthetic GHRH analog specifically indicated for reduction of excess abdominal (visceral) fat in HIV patients with lipodystrophy. It is the only GHRH peptide with FDA approval for a fat-reduction indication and is studied off-label for metabolic syndrome and cognitive function.
- 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
- ~26 minutes
- N/A — topical; sustained signaling effects on fibroblasts persist beyond single application
- Admin Route
- SubQ
- Topical
- Research
- —
- —
- Typical Dose
- 2 mg
- 3–8% concentration
- Frequency
- Once daily
- Once or twice daily
- Key Benefits
- FDA-approved for visceral fat reduction in HIV lipodystrophy
- Significant reduction in trunk/visceral fat (average 15–20% in trials)
- Improved triglyceride and lipid profiles
- Potential cognitive benefits and memory improvement
- Preserves lean mass while reducing fat
- Natural pulsatile GH stimulation
- 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 reactions (redness, irritation)
- Arthralgia and joint pain
- Peripheral edema
- Carpal tunnel syndrome
- +2 more
- Exceptional safety profile
- Non-irritating, suitable for sensitive skin
- No known adverse effects at cosmetic concentrations
- Stacks With
- —
- —