The Ordinary DOUBLE VALUE PACK 2 x Salicylic Acid 2% Anhydrous Solution 30ml. This is a water-free product formulated to exfoliate the skin and help decongest pores. Direct acids, specifically alpha hydroxy acids (AHAs) and beta hydroxy acids (BHAs), are renowned for their ability to support the natural shedding of dead skin. While AHAs aim to promote superficial exfoliation, Salicylic Acid (SA), a lipophilic BHA, is particularly effective at targeting oil within the pores that can lead to congestion. The Ordinary Salicylic Acid 2% Anhydrous Solution offers salicylic acid in a squalane base formulated with the intent of reducing concerns of skin irritation that can be associated with the use of SA.Note: The Ordinary Salicylic Acid 2% Anhydrous Solution is not a direct replacement for Salicylic Acid 2% Solution.