Perricone MD Vitamin C Ester Intensive Brightening Regimen 15% 0.34 OZ NIB 1 Tube Harnessing a high concentration of our signature Vitamin C Ester at 15%, this rich, super-charged treatment works to minimize the appearance of the most stubborn dark spots & discoloration. Skin Concerns: Uneven skintone Discoloration Texture: Cream Consistency: Lightweight Scent: Slight Citrus