Melanocortins.

A matched pair for melanocortin-receptor work: MT-I, the linear, MC1R-selective α-MSH analogue for pigmentation and photoprotection biology, and MT-II, the cyclic pan-receptor agonist used to screen across MC1R, MC3R, MC4R and MC5R. One selective probe, one broad one — the standard toolkit for mapping the receptor family.

Both are batch-verified by an independent US lab, with purity, identity and endotoxin results documented in the COA that accompanies every order.