Vitamin C Ceramide Capsules Radiance Renewal Serum 178X more potent than traditional Vitamin C for brighter, even-toned skin.* This dry oil serum combines two powerhouse ingredients in one capsule: Vitamin C for its brightening superpowers, and moisture-boosting ceramides to prolong skin’s youthful look. Dual-action brightening technology works from the outside in to diminish dullness, even skin tone and reveal a healthy, luminous glow. See visibly brighter skin after just one use.