Essences, serums, and ampoules are the core treatment steps in Korean skincare, delivering highly concentrated active ingredients that target concerns like dehydration, dullness, fine lines, dark spots, and loss of elasticity. These lightweight, fast-absorbing formulas layer seamlessly into your routine to boost hydration, support collagen production, strengthen the skin barrier, and promote the smooth, radiant βglass skinβ look K-beauty is known for.