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.
Honestly, I bite the inside of both my cheeks and the inside of my upper an lower lip. I know when Iâm doing it so itâs not like subconsciously done. I actually like doing it, weird I know. Itâs really bad cause when I pull the skin it gets near the piece in your mouth connecting your lip and teeth.