Melanotan What It Is and Its Relation to Skin Cancer Other Products Sunlife Pharmacy How long does Melanotan Nasal Spray Take to Work? Melanotan 2 (10 MG) Sigma Compounds 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. MELANOTAN II (MT 2) VIAL, (10MG) High Purity Peptide Pure Bio Labs