Health & Beauty
8 Bad Skin Habits That'll Shock You
You know your diet coke addiction and sunbathing ways are bad for your skin, but read on to see the mistakes you don't even realize you're making
Overusing cortisone cream also causes collagen to break down, which leads to thinning of the skin and -- worst-case scenario -- stretch marks. So, how to use this product safely? Wu says to only use it when you really need it, and for a max of two weeks at a time. Also, use the mildest form and apply a very thin layer on areas with thin skin, such as the groin, face, and underarms.
SEE NEXT PAGE: Skin sin no. 4: Not airing out your makeup brushes