There are two peptides people talk about for tanning: Melanotan 1 and Melanotan 2. Melanotan 1 works slower and mainly targets the skin, leading to a more gradual and even increase in pigment with Changes in Oral Mucosa Associated with Melanotan II Injections: A Case Report Melanotan What It Is and Its Relation to Skin Cancer Melanotan 1 vs Melanotan 2: Differences, Benefits & Risks Avoid nasal tanning sprays or nasal tanners entirely. These products can produce nasty side effects, such as nausea and vomiting, high blood pressure, respiratory issues, and even links to skin cancer. Nasal Melanotan Side Effects What Researchers Must Know