melanocortin agonist · MC4-focused
PT-141, in research terms
Also known as bremelanotide.
PT-141 (bremelanotide) is a melanocortin-receptor agonist studied with a focus on the MC4 receptor — the melanocortin target most associated with arousal-pathway research. It is the narrower, MC4-weighted counterpart to Melanotan II.
what it is
PT-141 is a melanocortin agonist studied primarily at the MC4 receptor. That MC4 emphasis is what places it in the vitality & libido range rather than the pigmentation-oriented aesthetics range.
how it differs from Melanotan II
Both are melanocortin compounds. Melanotan II is broad — it also engages MC1 (pigmentation). PT-141 is weighted toward MC4 (the arousal-associated receptor). The research profiles differ mainly in which receptors dominate, not in the family they belong to.
verifying identity and purity
Every PT-141 research pen ships with an independent, batch-specific certificate of analysis reporting identity and HPLC purity. See how to read a COA.
research use only
This compound is supplied strictly for in-vitro and laboratory research use only. It is not a medicine, is not for human or veterinary consumption, and nothing on this page is dosing, medical or treatment guidance. Any effect described is stated in the context of published research, not a claim about use.
where to find PT-141
PT-141 is supplied in the following research pens — pre-filled, batch-numbered and independently assayed. Save one to your list and we'll email you the moment it's available in your country.