Melanotan 2 is an unregulated, unsafe substance often advertised as a self tanning aid., Use of Melanotan 2 has been linked to serious side effects including loss of vision, moles, stroke, muscle How Can You Tell if It's Melanoma or Just a Mole? Melanotan is trending again. As a dermatologist, I strongly need to tell you It's an unapproved injectable peptide, and we're seeing: nausea and flushing darkening of existing moles How to determine whether a mole is benign or malignant at home? Esteva Clinic Moles (melanocytic naevi, pigmented nevi) Spot the difference. About melanoma