Holy Crap! Whats her number!
From my point of view, i dont think it does anything to the skin
I dont think there are any 'active' ingredients that might be of benefit to the skin.
You might say there is the live semen, but they die out pretty quickly unless deposited in a non-hostile enviroment pussy or mouth

)
So maybe she was just gullible and didnt know better
Sorta like a placebo effect, she heard it was true, wants it to work (maybe she got bad skin before) and somehow she got some improvement and thinks it is true