What it is: A clinically tested 15 percent vitamin C and ferulic acid serum that targets hyperpigmentation, uneven tone, and visible signs of sun damage. Skin Type: Normal, Dry, Combination, and Oily Formulation: Serum Highlighted Ingredients: - 15% Multi-Vector Vitamin C Complex - Liposomal 3-O-Ethyl Ascorbic Acid, Gold-Stabilized L-Ascorbic Acid, and THD (Tetrahexyldecyl Ascorbate): Proprietary blend of hyper-stable vitamin C forms for visible brightening. - Advanced Antioxidant Cocktail - Tranexamic Acid, Ferulic Acid, & Alpha-Arbutin: Defend against visible signs of environmental damage and the look of premature skin aging. - Patented Peptides + FGF-2 Growth Factor: Shown to fade the look of dark spots and hyperpigmentation without irritation. Ingredient Callouts: Free of parabens, formaldehydes, formaldehyde-releasing agents, phthalates, mineral oil, retinyl palmitate, oxybenzone, coal tar, hydroquinone, sulfates SLS & SLES, triclocarban, triclosan, and contains less than one percent synthetic fragrance. It is also vegan, gluten-free, and cruelty-free. What Else You Need to Know: Pro C Serum is a clinically tested visibly brightening serum formulated to visibly improve dark spots, discoloration, uneven tone, dullness, and signs of sun-damaged skin. Powered by a 15 percent Multi-Vector Vitamin C Complex (three types of vitamin C), ferulic acid, tranexamic acid, alpha-arbutin, patented peptides, and FGF-2 Growth Factor technology, this advanced formula visibly targets multiple stages of discoloration while delivering potent antioxidant protection to defend against environmental aggressors and visible signs of premature skin aging. The lightweight, fast-absorbing formula layers seamlessly under moisturizer, SPF, and makeup without feeling greasy or heavy. Engineered to deliver powerful visible brightening benefits with minimal irritation, it is suitable for both preventative and corrective skincare routines. It's available in a refillable format designed to reduce packaging waste without compromising the formula, performance, or clinical results you expect and is dermatologist-tested, hypoallergenic, fragrance-free, and non-comedogenic. It's also suitable for all skin types, including sensitive and acne-prone skin. Clinical Results: Testing showed: - Clinically proven to outperform the leading professional vitamin C serum - Clinically proven to visibly reduce dark spots, hyperpigmentation, and uneven tone - Visibly reduces melasma, sun damaged skin, and post-acne marks Based on clinical results: - Tested hypoallergenic, non-comedogenic, and fragrance-free This product is an Allure Best of Beauty award winner.