how long does melanotan last in the body – What It Is and Its Relation to Skin Cancer Viral 'Barbie drug' for tanning
Description
Cell 127 , 11931207 (2006)
Sounds magical but it really nips it in the bud just like that

(PubMed) Wardle SP, Hughes A, Chen S, Shaw NJ

Exfoliation is the most important step in a lip care regime