Reminder of serious health risks with 'Melanotan 2' self tan products Irish Pharmacist Melanotan (MT) II Melanocortin Receptor Agonist MedChemExpress Warning issued over increased use of 'Barbie drug' Health warning over 'dangerous' self tan product after increase in ads Melanotan II (Tan Jabs): Why They're Not Worth The Risk Avoid nasal tanning sprays or nasal tanners entirely. These products promise an all over tan without sun exposure but they are unregulated, can be unsafe, and contain potentially risky substances like Melanotan 2.