Bye Bye Dark Spots Concealer + Serum is a buildable - medium-coverage concealer for dark spots that features the exclusive Super Bright Serum with 2% niacinamide - hyaluronic acid and caffeine for instant coverage now and visible improvement of bare skin concerns over time. Design house: It Cosmetics. Gender: Ladies. Category: Cosmetics. Collection: Bye Bye Dark Spots Concealer & Serum. SubType: Concealer. Beauty group: Face. Size: 0.22 oz. Color: Tan Cool 40. Barcode: 3605972732729. It Cosmetics Ladies Bye Bye Dark Spots Concealer & Serum 0.22 oz Tan Cool 40 Makeup 3605972732729.