Cosrx The Alpha-Arbutin 2 Discoloration Care Serum - 50ml is a high-performance brightening solution designed to visibly improve skin tone, fade dark spots, and tackle multiple forms of hyperpigmentation. Powered by a potent 2% concentration of alpha-arbutin a gentle yet effective brightening agent this serum works by inhibiting melanin production to reduce the appearance of acne scars, sunspots, and hormonal discoloration without irritating the skin. The formula is enriched with 3% tranexamic acid, a proven ingredient in pigmentation care that helps diminish stubborn dark patches like melasma and post-inflammatory hyperpigmentation. Complementing this is 5% niacinamide (vitamin B3), which not only brightens the skin but also helps minimize pores, strengthen the skin barrier, and calm redness. This multi-functional vitamin supports an even, healthy-looking complexion while enhancing the effects of other brightening agents. N-Acetylglucosamine (NAG), a skin-friendly sugar compound, promotes gentle exfoliation and enhances the synergy between niacinamide and alpha-arbutin. Meanwhile, antioxidants like ferulic acid and glutathione are included to fight environmental damage, reduce oxidative stress, and maintain a luminous glow. Together, these ingredients create a powerhouse blend that targets discoloration from multiple angles, making it ideal for dull, uneven, or post-acne skin. The serum has a lightweight, non-sticky texture that absorbs quickly into the skin without leaving residue. Free from parabens, artificial fragrance, alcohol, and essential oils, it's suitable for all skin types, including sensitive and acne-prone skin. Designed for daily use, the serum layers easily with other skincare products and fits seamlessly into both morning and evening routines. Whether you're dealing with stubborn pigmentation or looking to restore radiance, the COSRX serum offers a science-backed, gentle solution for clear, even-toned, and glowing skin.