The ONE SIZE B12 Base Thinner is a revolutionary pearlescent serum that works double duty as both a makeup transformer and skincare treatment. This innovative formula is infused with pink and gold vegan pearls that instantly illuminate your complexion, creating a natural, healthy-looking glow. The lightweight, oil-free texture blends seamlessly with your favorite foundation, allowing you to customize coverage and finish while boosting radiance. Powered by a potent blend of Vitamins B12, C, and E, this serum delivers antioxidant protection against environmental stressors while conditioning your skin. Beta Glucan and Hyaluronic Acid provide intense hydration for plump, bouncy-looking skin, while Ceramides and Adenosine work to prevent moisture loss and reduce the appearance of fine lines and wrinkles. Clinical testing shows 100 of users agree this serum transforms cream and liquid formulas while adding luminosity. The non-comedogenic formula won't clog pores and extends makeup wear while delivering visibly healthier-looking skin in just two weeks. This 1.0 fl oz bottle is vegan, gluten-free, and free of parabens, sulfates, and synthetic fragrances, making it suitable for all skin types seeking that coveted lit-from-within radiance.CLEAN BEAUTY: Oil-free, vegan, gluten-free, and cruelty-free formula that won't clog pores, free of parabens, sulfates, phthalates, and contains less than 1 synthetic fragrance in a 1.0 fl oz bottle. HYDRATING FORMULA: Beta Glucan, Hyaluronic Acid, and Ceramides provide intense moisture for plump, bouncy-looking skin while preventing moisture loss and reducing the appearance of fine lines. SKIN-NOURISHING VITAMINS: Enriched with Vitamins B12, C, and E to condition skin, deliver antioxidant benefits, and defend against environmental stressors. INSTANT LUMINOSITY: Pink and gold vegan crushed pearls create natural radiance and a healthy-looking glow while illuminating skin immediately upon application. MULTI-USE SERUM: This pearlescent vitamin serum works as both a standalone skincare treatment and a makeup mixing medium to transform foundation coverage and finish.