The COSRX The Alpha-Arbutin 2 Discoloration Care Serum is a highly concentrated serum designed to effectively target pigmentation spots, acne scars, and uneven skin tone. Thanks to a synergy of powerful active ingredients such as alpha-arbutin (2%), tranexamic acid, niacinamide, and N-acetylglucosamine, this serum works at every stage of pigmentation formation for a visibly more even and radiant complexion. Its soothing and moisturizing formula is suitable for all skin types, even the most sensitive.