Never sleep with makeup

 Makeup is supposed to help you look and feel more beautiful, but leaving it on overnight often has the opposite effect. Our skin is covered in pores, and those pores not only allow us to sweat, but they also allow us to secrete sebum, a waxy lubricant that helps moisturize and protect our skin. The problem with makeup is that it clogs pores and prevents sebum from doing its job — instead, sebum builds up, which can cause acne.