Hydrate and soothe sensitive skin with DR. ALTHEA Oasis Soothing Mask, featuring Centella Asiatica and Sodium Hyaluronate. Dr. Althea Vitamin C Boosting Serum is designed to brighten the skin and improve elasticity with its 63% Vita Boosting Complex. It contains high levels of Vitamin C, including 3-O Ethyl Ascorbic Acid and Niacinamide, which help fade dark spots and even out skin tone. With 8 types of Hyaluronic Acid, this serum deeply hydrates the skin without a sticky finish. It also promotes collagen production, leaving the skin firm, smooth, and revitalized.