Salicylic acid, known as Beta Hydroxy Acid (BHA) is an exfoliant that works to gently unglue dead and dehydrated cells from the skin's surface which may be clogging pores, making them appear larger, and contributing to breakouts. With its anti-inflammatory and anti-bacterial properties, BHA is an ideal choice for oily and blemish prone skin with The INKEY List Beta Hydroxy Acid Serum. Oil soluble, BHA is great at clearing pores of sebum and dirt without manual exfoliation. Formulated with Hyaluronic Acid for added hydration our BHA will help to reveal a brighter, hydrated and more even complexion. BHA acts to: - Prevent breakouts & black heads - Unclog pores - Control excess oil 2% Salicylic Acid helps gentle exfoliation of the skin and works inside the pores. 1% Zinc salt compound helps reduce excess sebum. 1% low molecular Hyaluronic Acid helps to hydrate skin beneath the surface.