The Aculon treatments result in a functionalized surface that is highly oleophobic. As can be seen from the graph below a treated parts is 8 times more oil repellent than an untreated part where oil would easily wick across the surface.
The skin of the lip forms the border between the exterior skin of the face, and the interior mucous membrane of the inside of the mouth. The lip skin is not hairy and does not have sweat glands. Therefore it does not have the usual protection layer of sweat and body oils which keep the skin smooth, inhibit pathogens, and regulate warmth.
1 Standard Lip Piercing â This is a single piercing done off centered on the lower lip. 2  A captive bead ring (CBR) or labret stud can be worn. 3  Monroe Piercing â This is a single piercing done on the left side of the upper lip and is named for the mole on Marilyn Monroeâs lip. 4  Usually a labret stud is worn in this piercing.