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