However you shouldn't make it a regular affair. Sleeping with makeup also implies that you haven't washed your face the whole day and the makeup that you have on has already attracted dirt, grime, grease and bacteria and that means you will be sleeping with all those pollutants buried in your pores. Particularly, if your makeup is too heavy, then cleaning it off every night is a must. According to Dr. Robin Ashinoff, director of cosmetic dermatology at Hackensack University Medical Center in New Jersey, if makeup stays on for too long, the natural process of exfoliating the skin is inhibited and this in turn can leave the skin looking dull.
Especially if your eyes are heavily done with eyeshadow, mascara, kajal (kohl), eyeliner, et al, then you should definitely take it off. Mascara when left on for a long time can make your eyelashes firm & inflexible and you could lose a couple eyelashes just by rubbing your eyes or rolling in bed. Eyeshadow, on the other hand could dry your eyelid skin and cause inflammation or even styes, while the carbon in your kajal could cause discoloration. Heavy foundations can clog the pores and cause pimples, blemishes, blackheads or rashes, more so, if your skin is oily, acne-prone or sensitive.
So if you do slip up and go to sleep with your makeup, you can try some damage-control options next morning. Start by washing your face with a salicylic acid-based cleanser, then apply a purifying or detoxifying mask to draw out impurities and finish with an antioxidant-based moisturizer.
(Guest Post by Smitha)