Our 5% Niacinamide HA Serum contains nicotinamide, glycerin, and hyaluronic acid. It can effectively reduce pores and skin imperfections, making your skin look smoother. Add moisturizing ingredients to improve dry skin and leave skin hydrated and plump. Its use method is very simple: after cleansing and toning, press 1-2 pumps of serum, evenly apply on the face, gently massage with your hand until absorbed. It can effectively reduce facial blemishes, refine pores, improve dry skin, and replenish moisture for skin.