Beauty of Joseon's Glow Serum Propolis + Niacinamide is a highly concentrated, lightweight serum with two powerful, active ingredients – Propolis and Niacinamide. This serum helps maintain healthy, youthful skin by helping reduce inflammation, brighten skin tone, and promote elasticity. It also helps improve dark spots and uneven skin tones, leaving skin feeling velvety soft and looking luminous.