Melanotan, sometimes referred to as the 'Barbie drug', is a peptide hormone that stimulates the body's production of melanin, which gives a tan without the need for exposure to the sun's UV rays. It is used by some to achieve a more even and long-lasting tan in a shorter amount of time. The product is popular among those seeking a faster and more convenient solution for a tan. Melanotan is legal to use in Norway and in most other countries.