Our Best Seller! Niacinamide is concentrated Vitamin B3 serum on a bed of aloe and seaweed extract. Makes skin firmer, younger, and more supple. Brightens skin tone and fades blemishes. Calms inflammation, shrinks pores, smooths wrinkles, and unclogs congested pores. Increases skin health. Volume: 30ml. Dimensions: 4 x 1.3 x 1.3 in.