Melanotan II

Research

Melanotan II

Aliases
MT-2, MT-II
Administration
Subcutaneous injection (unregulated, self-administered)

Documented benefits

Tier 1 · Peer-reviewed / regulatory

Aesthetic & Beauty

Melanotan II's defining research application — a more potent, non-selective precursor to the FDA-approved Melanotan I and PT-141.

Skin pigmentation

Activates the same MC1R pathway as Melanotan I, but less selectively, which is part of why it also affects libido as a side effect.

Increased libido

Its non-selective receptor activity also engages the same MC4R brain pathway that PT-141 was later refined to isolate.