Arenicin-1 vs PT-141
Head-to-head comparison of Arenicin-1 (Arenicin-1) and PT-141 (Bremelanotide (Melanocortin Receptor Agonist)) — benefits, dosing, side effects, research data, and where to buy.
Research Score
| Property | Arenicin-1 | PT-141 |
|---|---|---|
| Category | Marine-Derived | Performance |
| Full Name | Arenicin-1 | Bremelanotide (Melanocortin Receptor Agonist) |
| Molecular Weight | 2079 Da | 1,025.2 Da |
| Half-Life | n/a | ~2.7 hours |
| Amino Acids | 21 | 7 |
| Typical Dose | n/a | 1.75 mg |
| Route | preclinical | SC |
| Purity | ≥98% | — |
| Studies Count | 76 | 178 |
| Research Status | Pre-clinical | FDA Approved |
Arenicin-1 Benefits
- ✓antimicrobial
- ✓anti-biofilm
- ✓membrane-active
PT-141 Benefits
- ✓Enhances sexual desire and arousal
- ✓Works through CNS (not vascular)
- ✓FDA-approved for HSDD
- ✓Effective for both men and women
- ✓Does not require sexual stimulation to work
Arenicin-1 Dosing
bacterial infection|biofilm disruption
PT-141 Dosing
Standard: 1.75 mg SC, 45 min before activity|Max frequency: Once every 24 hours|Max: 8 doses per month|Men (off-label): 1-2 mg SC as needed
Arenicin-1 Side Effects
- ⚠Arenicola marina
PT-141 Side Effects
- ⚠Common: Nausea (40%), flushing, headache, injection site reactions
- ⚠Moderate: Elevated blood pressure (transient), fatigue
- ⚠Serious: Focal hyperpigmentation with repeated use
- ⚠Contraindications: Uncontrolled hypertension, cardiovascular disease
Research Overview
Arenicin-1
Marine annelid peptide with strong preclinical antibacterial activity and a stable structural motif that is useful for peptide engineering.
PT-141
PT-141 has robust clinical evidence including multiple Phase III trials. FDA-approved in 2019. Unique mechanism of action through melanocortin-4 receptors in the brain. Well-characterized safety and efficacy profile.
Ready to buy?
Find both peptides from our verified, lab-tested vendors with purity certificates and third-party testing.