How Real Women Use Beauty Products to Conceal a Hangover

A makeup artist tip I learned a few years ago: if you forget to wash off your makeup before bed, wash your face ASAP with a gentle cleanser, then apply retinol — it will help keep breakouts at bay, and it really does work! I favor Avene's Rétrinal ($69) because it doesn't dry out my skin. (Do note that this product makes you sun sensitive, so staying indoors is key.)

— KJ