Size: 50g (30+ cotton balls per serum) Highly concentrated with 2% AHA and 2% BHA, this serum in a pure cotton ball quickly and easily soothes acne-scarred skin and instantly cares for blackheads and whiteheads. COSRX The AHA 2 BHA 2 Blemish Treatment Serum for those seeking a gentle yet effective blemish spot treatment for acne-prone skin, this product also addresses blackheads, whiteheads, and clogged pores caused by excess sebum. Target concerns - Blemishes and Acne - Pore - Rough skin texture Texture The oil and pure vitamin c layers blend together and absorb smoothly into the skin, leaving it more supple and radiant. If you experience any stickiness, try adding a bit of moisturizer Color 100% pure cotton compressed balls are filled with an intensive spot treatment serum, leaving a refreshing finish without any residue.