Some do have bad skin (hence the crack den), but some look amazing !!!
Look at Elle McPherson, she's approaching 50!
And that brunette in the centre, brazilian, forgot the name. Looks awesome with no make up!
Some look like they are from a crack den
To be fair though if you weigh 3lbs and had an abomination of a diet, you too would look like cat vomit at deaths door without make up on.