Nonapeptide-1

Nonapeptide-1 works by inhibiting the binding of alpha-melanocyte-stimulating hormone (α-MSH) to its receptor, which reduces melanin production in the skin. This synthetic peptide, also known as Melanostatine-5, was designed to address hyperpigmentation concerns in cosmetic dermatology. Initial research interests surged due to the demand for safer alternatives to chemical skin lighteners, prompting scientists to explore peptide-based solutions. Its efficacy has been a point of study in reducing melanin synthesis without cytotoxic effects on melanocytes. Today, it is primarily studied for its effects on:

• Reducing hyperpigmentation
• Inhibiting melanin synthesis
• Cosmetic dermatology applications
• Skin lightening

The peptide's potential in cosmetic formulations has been evaluated for its skin-whitening properties.

PeptideSource editorial · Updated Jul 18, 2026