Bremelanotide vs Neuropeptide S
Head-to-head comparison of Bremelanotide (Bremelanotide (PT-141), cyclic melanocortin receptor agonist) and Neuropeptide S (Neuropeptide S) — benefits, dosing, side effects, research data, and where to buy.
Research Score
| Property | Bremelanotide | Neuropeptide S |
|---|---|---|
| Category | Sexual Health | Cognitive Enhancement |
| Full Name | Bremelanotide (PT-141), cyclic melanocortin receptor agonist | Neuropeptide S |
| Molecular Weight | 1025.2 Da | 2203 Da |
| Half-Life | about 2.7 h | Minutes to <1 hour |
| Amino Acids | 7 | 20 |
| Typical Dose | 1.75 mg | Research-only; no validated human dose |
| Route | Subcutaneous | Intracerebroventricular/Intranasal |
| Purity | ≥98% | ≥98% |
| Studies Count | 200 | 28 |
| Research Status | Clinical | Pre-clinical |
Bremelanotide Benefits
- ✓increases sexual desire
- ✓supports arousal
- ✓may improve erectile response
- ✓on-demand use
Neuropeptide S Benefits
- ✓anxiolysis
- ✓stress resilience
- ✓attention support
- ✓arousal modulation
Bremelanotide Dosing
1.75 mg subcutaneous PRN|administer about 45 minutes before activity|max 1 dose per 24 hours
Neuropeptide S Dosing
0.1-1 nmol i.c.v. in animal studies|intranasal research-only exploration|no established human protocol
Bremelanotide Side Effects
- ⚠nausea
- ⚠flushing
- ⚠headache
- ⚠transient blood pressure increase
Neuropeptide S Side Effects
- ⚠sleep disruption
- ⚠headache
- ⚠jitteriness
Research Overview
Bremelanotide
Human studies and approval data support meaningful effects on sexual desire in women, with a central mechanism involving melanocortin signaling. It is one of the most clinically relevant peptides in this category and is commonly used as the reference compound for PT-141-type research.
Neuropeptide S
Animal studies suggest NPS can reduce anxiety-like behavior while altering wakefulness and alertness through the NPS receptor system. Human cognitive data are very limited, and it has no approved clinical indication.
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