How to judge the absorption of skin care products?
I don't like to try things by myself, and I can't always try them out. So now I try something directly on my face, or the inside of my wrist, and the effect will be closer to my face than my hand. The best way is to ask the salesgirl for a sample and take it home. Of course, it is often impossible, hehe. It's easier to get a try-on when you get acquainted with the counter girl.