That quick tan injection is NOT worth the risk., Melanotan peptide injections stimulate pigment cells, and its use has been linked to rapid changes in moles, including the potentially fatal skin Over a quarter of Welsh people are regularly using sunbeds Melanoma Focus What are the recent findings on the safety and efficacy of melanotan for therapeutic and cosmetic use? 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.