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Veyvora
Research

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.

© 2026 Veyvora. All rights reserved. For laboratory research use · store cold, 2–8 °C