Priori Q+SOD fx220 Brightening Serum 1oz, 30ml Priori Q+SOD fx220 Brightening Serum has the following features: Visibly improves the appearance of uneven skin tones while reducing pigmentation. Featuring Retinol for skin resurfacing and renewing. CoQ10 is an advanced skin antioxidant with great skin penetration. SOD is an enzyme antioxidant for superior skin protection and correction.15% Lactic Acid helps gently exfoliate skin, boost hyaluronic and collagen responses. Works in real-time to give your skin exactly what it needs for a brighter, youthful look.