The Oh K! Hyaluronic Acid Hydrogel Sheet Mask is carefully formulated with Vitamin B3 and Gotu Kola, to improve skin tone and elasticity, the moisture-magnet Hyaluronic Acid, to help plump the skin, and soothing Chamomile, all expertly blended into a 2-part hydrogel structure. The gel hugs the contours of the skin, to prevent the mask slipping and sliding, while allowing you to control and placement of the mask to maximize skin contact, creating a comfortable, easy to wear mask with a luxurious spa Experience.