Circumference Vital-C Antioxidant Day Serum brings radiance to your skin. This serum swiftly brightens the skin, protecting it from environmental stressors. It contains potent antioxidants, hyaluronic acid, and olive leaf extract. Niacinamide, mullein leaf, and liquorice root combine to soften and soothe. Designed to neutralize UVA and UVB rays, this serum encourages a delicious, lit-from-within glow.