My video about the dangers of tanning nasal sprays and sunbeds went viral on TikTok and the reaction it received is terrifying Dr Sophie Shotter Think twice before injecting peptides bought online: unauthorized products can seriously harm you Canada.ca Nasal tanning sprays linked to skin cancer, trading standards officers warn Consumer affairs The Guardian Nasal tanners claim to work by using Melanotan II, a chemical that darkens skin pigmentation. It is illegal to sell medicinal products containing Melanotan II in the UK but since the tanners are sold Melanotan peptide might seem like the cool thing to doit makes you look tan., But these unregulated injections come with real risks., They can cause unpredictable skin changes, including darkening of