@k.pharmacist_unnie: First, night 1 you need to clear the path. when dead skin cells are accumulated on your skin, it brings out more breakouts. You need AHA or BHA to remove that stubborn dead skin cells so your skin can breathe. @medicube global Second, night 2. speed up the cell turnover. Use Retinal to speed up the new cell formation from the deep layers. @celimax.global @PURITO SEOUL @Beauty of Joseon Third, day 3 and day 4 focus on recovery and lock down the barrier. Use ceramide to calm the skin and let those new skins mature safely. @AESTURA @La Roche-Posay #kbeauty #retinol #skincycling #medicube #skinbarrier