Argireline vs Endothelin-1
Head-to-head comparison of Argireline (Acetyl Hexapeptide-3) and Endothelin-1 (Endothelin-1) — benefits, dosing, side effects, research data, and where to buy.
Research Score
| Property | Argireline | Endothelin-1 |
|---|---|---|
| Category | Skin & Cosmetic | Skin & Cosmetic |
| Full Name | Acetyl Hexapeptide-3 | Endothelin-1 |
| Molecular Weight | 889.0 Da | 2493 Da |
| Half-Life | N/A | ~2–10 minutes |
| Amino Acids | 6 | 21 |
| Typical Dose | 0.005-10% in finished cosmetic products | 1–100 nM |
| Route | Topical | In vitro / ex vivo |
| Purity | ≥98% | ≥98% |
| Studies Count | 48 | 350 |
| Research Status | Clinical | Pre-clinical |
Argireline Benefits
- ✓expression-line softening
- ✓anti-wrinkle support
- ✓cosmetic skin smoothing
- ✓topical peptide stacking
Endothelin-1 Benefits
- ✓Stimulates melanocyte activity
- ✓Supports melanosome transfer studies
- ✓Useful in UV-induced pigmentation research
- ✓Links vascular and pigment signaling
Argireline Dosing
Topical serum/cream 0.005-10%|Apply 1-2x daily to clean skin|Use consistently for 4-12 weeks
Endothelin-1 Dosing
1 nM exposure|10 nM exposure|100 nM exposure
Argireline Side Effects
- ⚠mild stinging
- ⚠redness or irritation
- ⚠allergic contact dermatitis
Endothelin-1 Side Effects
- ⚠Vasoconstriction
- ⚠Cell-stress signaling at high concentrations
- ⚠Inflammatory cross-talk
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.
Endothelin-1
Endothelin-1 is one of the best-studied non-melanocortin regulators of pigmentation in human skin. It is strongly associated with UV-induced tanning responses and pigment disorder biology.
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