Arenicin-1 vs Bremelanotide

Head-to-head comparison of Arenicin-1 (Arenicin-1) and Bremelanotide (Bremelanotide (PT-141), cyclic melanocortin receptor agonist) — benefits, dosing, side effects, research data, and where to buy.

Research Score

PropertyArenicin-1Bremelanotide
CategoryMarine-DerivedSexual Health
Full NameArenicin-1Bremelanotide (PT-141), cyclic melanocortin receptor agonist
Molecular Weight2079 Da1025.2 Da
Half-Lifen/aabout 2.7 h
Amino Acids217
Typical Dosen/a1.75 mg
RoutepreclinicalSubcutaneous
Purity≥98%≥98%
Studies Count76200
Research StatusPre-clinicalClinical

Arenicin-1 Benefits

  • antimicrobial
  • anti-biofilm
  • membrane-active

Bremelanotide Benefits

  • increases sexual desire
  • supports arousal
  • may improve erectile response
  • on-demand use

Arenicin-1 Dosing

bacterial infection|biofilm disruption

Bremelanotide Dosing

1.75 mg subcutaneous PRN|administer about 45 minutes before activity|max 1 dose per 24 hours

Arenicin-1 Side Effects

  • Arenicola marina

Bremelanotide Side Effects

  • nausea
  • flushing
  • headache
  • transient blood pressure increase

Research Overview

Arenicin-1

Marine annelid peptide with strong preclinical antibacterial activity and a stable structural motif that is useful for peptide engineering.

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.

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Common Stacking Partners

Arenicin-1 stacks with:

Arenicola marinabeta-hairpinantibiotic

Bremelanotide stacks with:

Kisspeptin-54Melanotan-II
marine-derivedbioactiveantimicrobial peptidebiofilmmelanocortinlibidoerectile-functionapproved