i've been wondering this too.. but haven't found an answer yet.

The default head has a make-up Hud too

so you can buy/make makeups and it will work in a separate HUD to the skin layer ?

if the skin maker made them, at the moment it is incorporated into the base skin, so if you bought for example the Adam n Eve set , then if she releases just a lips pack or just an eyes pack, you need to buy

it in the same tone you already own

bah.. ok thanks