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How do PT 141 and Melanotan 2 differ in mechanism?

PT 141: Cyclic heptapeptide melanocortin agonist selective for hypothalamic MC3R and MC4R — acts centrally rather than on peripheral vasculature. Melanotan 2: Alpha-MSH analogue activating MC1R (melanogenesis), MC3R and MC4R (appetite and central arousal pathways).

What research concentrations are referenced for PT 141 and Melanotan 2?

PT 141 is catalogued at 10mg. Melanotan 2 is catalogued at 10mg. Concentrations and reconstitution volumes are documented on each product page for laboratory reference.

Are PT 141 and Melanotan 2 sold for human use?

No. PT 141 and Melanotan 2 are sold strictly for in vitro laboratory research use. They are not for human consumption, medical use, or self-administration, and they have not been evaluated by the FDA.

Where can I read the published research on PT 141 and Melanotan 2?

Peer-reviewed literature for both compounds is indexed on PubMed, and selected studies are linked on this page and on each product page. All references are provided for research and informational purposes only.

PT 141 vs Melanotan 2

A side-by-side research reference for PT 141 and Melanotan 2 — mechanism of action, catalogue data, and the key studies behind each compound.

Comparison	PT 141 $30.00 Shop PT 141	Melanotan 2 $30.00 Shop Melanotan 2
Compound class	Peptides · Injectable vial	Peptides · Injectable vial
Mechanism of action	Cyclic heptapeptide melanocortin agonist selective for hypothalamic MC3R and MC4R — acts centrally rather than on peripheral vasculature.	Alpha-MSH analogue activating MC1R (melanogenesis), MC3R and MC4R (appetite and central arousal pathways).
Reference concentration	10mg	10mg
Research form	Injectable vial	Injectable vial

Key studies on PT 141

Published literature for this compound is indexed on PubMed.

Key studies on Melanotan 2

Melanotan II: melanocortin receptor agonist effects on sexual function and pigmentation Alpha-melanocyte-stimulating hormone analog PT-141 for erectile dysfunction Melanocortin-4 receptor activation and appetite suppression mechanisms in metabolic research

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PT-141 10mg

$30.00

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Melanotan 2 10mg

$30.00

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Research Use Only

All compounds referenced on this page are sold for in vitro laboratory research use only. Not for human consumption, medical use, or self-administration. Not evaluated by the FDA. This page is for research and informational purposes only.