ACTH vs Endothelin-1
Head-to-head comparison of ACTH (Adrenocorticotropic Hormone (Corticotropin)) and Endothelin-1 (Endothelin-1) — benefits, dosing, side effects, research data, and where to buy.
Research Score
| Property | ACTH | Endothelin-1 |
|---|---|---|
| Category | Skin & Cosmetic | Skin & Cosmetic |
| Full Name | Adrenocorticotropic Hormone (Corticotropin) | Endothelin-1 |
| Molecular Weight | 4541 Da | 2493 Da |
| Half-Life | ~10 minutes | ~2–10 minutes |
| Amino Acids | 39 | 21 |
| Typical Dose | 10–1000 nM | 1–100 nM |
| Route | In vitro / ex vivo | In vitro / ex vivo |
| Purity | ≥98% | ≥98% |
| Studies Count | 500 | 350 |
| Research Status | Clinical/Pre-clinical | Pre-clinical |
ACTH Benefits
- ✓Stimulates melanogenesis
- ✓Supports eumelanin production
- ✓Useful for pigmentation-pathway research
- ✓May model UV-response signaling
Endothelin-1 Benefits
- ✓Stimulates melanocyte activity
- ✓Supports melanosome transfer studies
- ✓Useful in UV-induced pigmentation research
- ✓Links vascular and pigment signaling
ACTH Dosing
10 nM exposure|100 nM exposure|1 uM exposure
Endothelin-1 Dosing
1 nM exposure|10 nM exposure|100 nM exposure
ACTH Side Effects
- ⚠Receptor desensitization
- ⚠Off-target melanocortin signaling
- ⚠Rapid proteolysis
Endothelin-1 Side Effects
- ⚠Vasoconstriction
- ⚠Cell-stress signaling at high concentrations
- ⚠Inflammatory cross-talk
Research Overview
ACTH
ACTH activates melanocortin receptors on melanocytes and can increase pigment synthesis. It is widely used as a reference peptide in studies of tanning, adrenal biology, and hyperpigmentation.
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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