The Obagi Professional-C Serum 15% is a medical-grade vitamin C serum formulated with 15% L-Ascorbic Acid, the purest and most effective topical form of vitamin C. In a 1 fl oz bottle, this concentrated serum helps brighten and even skin tone, neutralize free radicals, and visibly improve the appearance of fine lines and wrinkles. Its advanced formula is engineered to absorb five times better than other serums, ensuring superior penetration of active ingredients.

This serum promotes natural collagen synthesis to plump and firm skin while providing robust antioxidant protection against environmental stressors such as UV exposure and pollution. It is ideal for normal to combination skin types and effectively addresses skin discoloration, dark spots, sun damage, and early signs of aging. Formulated at a pH of 2.0–2.4 to optimize L-Ascorbic Acid stability and efficacy.

Apply 5-7 drops to the face, neck, and chest each morning after cleansing and toning, before moisturizer and sunscreen. A slight tingling may occur upon first use, which typically diminishes with continued use. Full ingredients: Propylene Glycol, Water (Aqua), L-Ascorbic Acid, Alcohol, Ascorbyl Glucoside, Fragrance (Parfum). Store below 25°C (77°F) away from direct sunlight, and use within 3-6 months of opening. For external use only.