@wankerLin Moisturizing skin is more of a Korean beauty thing, though. Get into enough K pop-culture and follow enough Koreans(especially ladies) and they're always talking about keeping their skin moisturized. Jessica Jung even swears by it as her most important step in cosmetics.
And in this case that just happens to be him jerking off into a bottle and selling it as moisturiser. At this rate he'll need to teach Talt about paizuri to help him mass-produce this stuff.