Cosrx AHA7 Whitehead Power Liquid 

The Cosrx AHA7 Whitehead Power Liquid gently exfoliates the skin and removes dead skin cells. Unlike conventional mechanical exfoliants, it does not require harsh scrubbing or peeling. As a result, the skin is less irritated and less susceptible to external influences and bacteria that can penetrate through tiny skin cracks. COSRX AHA7 Whitehead Power Liquid consists largely of Pyrus Malus water.
Pyrus Malus water is a naturally occurring alpha-hydroxy acid (AHA) found in sugarcane and malic acid. This wonderful natural hydroxy acid gently removes dead skin cells. But Pyrus Malus water has even more skin-nourishing properties. It reduces existing sun damage and hyperpigmentation, and gradually fades or tightens enlarged pores and scars, thereby making them smaller.

(1) As part of your toner or essence routine, apply a coin-sized amount thinly to affected areas of the face with many blackheads and excessive sebum buildup, either in the morning or evening after cleansing.
(2) Apply a thin layer to the entire face and gently massage it in using circular motions with a cotton pad.
(3) Avoid the eye area, and apply sunscreen after using the liquid in the morning.