Argireline vs Leuphasyl
Head-to-head comparison of Argireline (Acetyl Hexapeptide-3) and Leuphasyl (Pentapeptide-18) — benefits, dosing, side effects, research data, and where to buy.
Research Score
| Property | Argireline | Leuphasyl |
|---|---|---|
| Category | Skin & Cosmetic | Skin & Cosmetic |
| Full Name | Acetyl Hexapeptide-3 | Pentapeptide-18 |
| Molecular Weight | 889.0 Da | 569.6 Da |
| Half-Life | N/A | N/A |
| Amino Acids | 6 | 5 |
| Typical Dose | 0.005-10% in finished cosmetic products | 0.01-2% in cosmetic formulations |
| Route | Topical | Topical |
| Purity | ≥98% | ≥98% |
| Studies Count | 48 | 22 |
| Research Status | Clinical | Clinical |
Argireline Benefits
- ✓expression-line softening
- ✓anti-wrinkle support
- ✓cosmetic skin smoothing
- ✓topical peptide stacking
Leuphasyl Benefits
- ✓wrinkle-appearance reduction
- ✓expression-line softening
- ✓topical anti-aging support
- ✓cosmetic skin-smoothing
Argireline Dosing
Topical serum/cream 0.005-10%|Apply 1-2x daily to clean skin|Use consistently for 4-12 weeks
Leuphasyl Dosing
Topical serum/cream 0.01-2%|Apply once or twice daily|Combine with moisturizer or peptide serum
Argireline Side Effects
- ⚠mild stinging
- ⚠redness or irritation
- ⚠allergic contact dermatitis
Leuphasyl Side Effects
- ⚠temporary redness
- ⚠mild irritation
- ⚠sensitivity in compromised skin
Research Overview
Argireline
Acetyl hexapeptide-3 has both in vitro and small human-cosmetic studies supporting a reduction in wrinkle depth or wrinkle appearance. Its best-supported role is as a topical cosmetic peptide rather than a systemic drug.
Leuphasyl
Pentapeptide-18 has published cosmetic and formulation literature supporting its use in anti-aging skincare. Evidence is strongest for topical cosmetic smoothing rather than deep structural remodeling.
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