Because of the marketing power from the advertising media, Women are seduced into using makeup as teens. It affects their body's ever changing chemistry and becomes a vicious, self destructive, self loathing cycle that ends up making some of them look old and ugly on the inside and out.
It can be compared to using synthetic oil in your car, once you start you can never stop or it will ruin your engine. Maybe am wrong, But there are pictures from the reality tv show that backs up my theory above. See below.