Medicup Collagen Glow Booster Twist & Click Serum Brightening & Hydrating with Niacinamide Hydrolyzed Milk Protein Extract Brightens & Tightens Skin Korean Skin Care 1.68 oz All Types Unisex It is more than just a skin care product; It is a unique experience that restores your skin's youthfulness and radiance. Thanks to a powerful combination of active ingredients such as Niacinamide, Milk Protein Extract and Hydrolyzed Collagen, this milky serum provides superior hydration and effective rejuvenation to your skin. How to use: Cleanse your skin well and apply an appropriate amount of serum morning and evening to dry skin. Open the cap and rotate the push button counterclockwise to activate the pump. Press 2-4 times to obtain the required amount, then gently distribute the serum on the face and neck. After use, close the lid and rotate the button to lock it.