This product adopts lipid-soluble BHA salicylic acid formula. Unlike AHA fruit acid that only acts on the skin surface, salicylic acid penetrates pores along with sebum, dissolves accumulated keratin plugs and oil, clears blackheads, whiteheads, milia and closed comedones from the source, unclogs blocked pores and visually minimizes enlarged pores. The formula is blended with witch hazel extract to shrink pores and control oil, panthenol and sodium hyaluronate neutralize acid irritation, hydrate and soothe skin to prevent dry peeling, redness and stinging after acid exfoliation. It has lightweight watery texture, zero greasiness and fast absorption without clogging skin. Apply with cotton pad on oily and blackhead-prone areas after cleansing, 2 to 4 times weekly; local 3-minute wet compress can boost clearing for severe blackheads. Long-term use inhibits recurring blackheads, keeps pores clean and clear, balances facial oil secretion and smooths bumpy rough skin. Sunscreen use is recommended to reduce photosensitivity risk.