Dr. Althea Vitamin C Boosting Serum with a vitamin complex of 63% provides the skin with antioxidant protection, blocks the damaging effects of free radicals and removes toxins. Perfectly tones, refreshes, improves complexion, fights dullness and returns a healthy glow. The serum eliminates unwanted pigmentation and acne, soothes irritated skin. The key asset of the product is 45,000 ppm of vitamin complex: niacinamide (20,000 ppm) promotes the stimulation of collagen synthesis and improves protective functions, helps to reduce transepidermal moisture loss and eliminate pigmentation, moisturizes, narrows pores, soothes. 3-O-Ethyl Ascorbic Acid (15,000 ppm) is a derivative of ascorbic acid, a stable form of vitamin C. It illuminates age spots, stimulates collagen synthesis and has an antioxidant effect, thus increasing elasticity and density, prolonging the youthfulness of the skin. Panthenol (10,000 ppm) accelerates the healing process, soothes and softens, increases the barrier functions of the epidermis and strengthens the protective natural layer.