Sticking to washing your face with white vinegar can whiten your face, but its shortcomings are also here. In fact, the popular acetic acid rejuvenation in previous years used this principle to soften the stratum corneum and achieve the effect of rapid exfoliation of the stratum corneum. The normal metabolic cycle of skin is 28 days. Washing your face with white vinegar undoubtedly accelerates this metabolism. After a long time, the skin will become thinner, and more seriously it may become sensitive.