Buy 1, get 1 free: today's window closes at 11:59 PM PT

For Research Use Only. Not for Human Consumption.

Research catalog

Melanotan II vs PT-141

Melanotan II and PT-141: published catalog details for laboratory research. For Research Use Only. Not for Human Consumption.

All comparisons
Published catalog details for Melanotan II and PT-141
Catalog detailMelanotan IIPT-141
Research categoryEndocrine ResearchEndocrine Research
OverviewA lab-made cyclic version of the natural hormone alpha-MSH, studied for how it activates all five melanocortin receptor types. For research use only.A small cyclic peptide that acts on the MC3R and MC4R melanocortin receptors, studied for its effects on central-nervous-system signaling. For research use only.
MechanismA peptide studied for how it binds the whole family of melanocortin receptors, including the one tied to pigment signaling.A peptide studied for how it activates melanocortin signaling pathways in the central nervous system.
FormLyophilized PowderLyophilized Powder
Purity specification≥99% HPLC≥99% HPLC
Public sizes10mg10mg, 5mg
StorageRoom temperature, protected from light and moistureRoom temperature, protected from light and moisture

Research Use Only

For Research Use Only. Not for Human Consumption. Not a drug, supplement, or food product. All NuLumin Bio-Sciences products are designated Research Use Only (RUO). Not intended for therapeutic use or diagnostic purposes. Purchasers assume responsibility for ensuring compliance with all applicable regulations.

Seasonal offer · Fall 2026

The Fall Special.

Buy one, get one free on eligible compounds. Same compound, same size, added automatically.

Shop the Fall Special