According to the K-beauty expert, 2019 is going to be the year to invest in a gentle acid cleanser. Her favorite is the ByWishtrend Acid-Duo 2% Mild Gel Cleanser which helps decongest, exfoliate, and clear out impurities from the skin. Moreover, it doesn’t contain any irritating acid, sulfates, essential oils, fragrances, or colorants that can disrupt the skin barrier. She stated that rather than layering multiple products at night, a gentle acid cleanser can do all the heavy lifting.