Grace Duo SerumGrace Duo exfoliates and lightens the skin. It is consist of a lotion and a serum. The exfoliating lotion cleanses and removes smoothly and dramatically pigmented spots and rebels (Achilles tendon, elbow joint of fingers and toes). The lightening serum, with its formula based on exfoliating fruit acids, hydrates and brightens the skin. This serum eliminates stains on the joints of the fingers and toes, elbows, knees and legs.