melanocortin peptides, in research terms
This range covers melanocortin-receptor peptides studied in libido and arousal research. Unlike the metabolic or growth ranges, the defining variable here is receptor selectivity — which of the melanocortin receptors a compound preferentially engages.
Every pen is supplied for laboratory research use only, independently assayed, and shipped with a batch-specific certificate of analysis.
receptor selectivity — the axis of comparison
- PT-141 (bremelanotide) — a melanocortin agonist studied with a focus on the MC4 receptor, the target most associated with arousal-pathway research.
- Melanotan II — a broader melanocortin agonist that also engages the MC1 receptor (associated with pigmentation), which is why it sits in the aesthetics range.
The two are closely related melanocortin compounds; their research profiles differ mainly in which receptors dominate.
the compound in this range
- PT-141 — the melanocortin research pen for this class.
Melanocortin research comparisons (including PT-141 against Melanotan II) are collected on the compare page.
verifying identity and purity
Each pen ships with an independent, batch-specific certificate of analysis reporting identity and HPLC purity, so the compound can be verified before any research use. See how to read a COA.
research use only
These compounds are supplied strictly for in-vitro and laboratory research. They are not medicines, are not for human or veterinary consumption, and nothing here is dosing, medical, or treatment guidance.
