I'm trying to help a friend get the skin tones of her body (Maitreya) and head (Catwa) to match. All we want to change is the pigmentation - nothing else. Here's what I don't understand: We go into a skins store, and there are hundreds on display on the walls, but all have the same set of color options to buy. What makes skin "A" different from skin "B" - what's actually in that thing you buy other than the colors. If all I'm looking to do is get colors to match, I don't understand what I'm looking to buy from all these options. This just makes no sense to me at all.
Oh, and please explain it to me like I'm an 8 year old - or an 88 year old. Anything technical will go right over my head. Thanks for the help.