Sunday Riley C.E.O. 15% Vitamin C Brightening Serum

Serum is formulated with Tetrahexyldecyl Ascorbate, a gentle, non-acidic form of Vitamin C that delivers brightening and antioxidant benefits without irritation. To further support sensitive skin, the formula includes phytosterols (plant-based forms of cholesterol) that help support the skin’s natural barrier and soothe visible signs of redness. The result is a glow-boosting serum that feels nourishing, not sensitizing, even on delicate or easily irritated skin.  

Our tetrahexyldecyl ascorbate is pharmaceutical-grade, sourced from Japan – meaning it meets advanced requirements for purity, making it gentler for your skin than cosmetic-grade alternatives