The AHA 2 BHA 2 Blemish Treatment Serum

Not a bottled serum but a jar of pure cotton balls pre-soaked in a solution of 2 percent glycolic acid and 2 percent salicylic acid, lifted out one at a time with the tongs supplied. Gluconolactone, allantoin, zinc PCA and sodium hyaluronate fill out the formula. A ball is tapped onto a spot, or swept over areas with blackheads; COSRX asks for sunscreen when it is used by day. 50 g, more than 30 balls.