You Should Avoid Using Nasal Tanning Sprays Don't risk using tanning products containing melanotan Therapeutic Goods Administration (TGA) Melanotan II reverses memory impairment induced by a short term HF diet ScienceDirect Melanotan Tanning Peptides: Safe Use, Side Effects & How It Works Scientifically 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.