Professional Skin care Products › Mandelic Brightening Serum Image 1 of 1 Mandelic Brightening Serum $40.00 Mandelic Brightening Serum with Niacinamide, lifts pigmentation, exfoliates, and helps to reduce the appearance of pores. Quantity: Add To Cart Added! Mandelic Brightening Serum with Niacinamide, lifts pigmentation, exfoliates, and helps to reduce the appearance of pores.