1. 5% niacinamide brightening ingredient, sweeps the dark yellow of the skin, accelerates the metabolism of melanin, effectively improves the dullness, fine lines, pores and other skin problems, eliminates melanin deposits, helps the skin to return to a white state, prevents the skin from sagging, and makes the skin soft and soft. Moisturizing, white. 2. Effectively moisturize the skin, resist oxidation and wrinkle, improve dullness, shrink pores, and make the skin more delicate and smooth. 3. Help improve dryness and dehydration of skin, make skin delicate and smooth; moisturize, refine pores 4. Make skin moisturized, shiny, elastic, and radiant skin appears. 5. Improve skin elasticity, pigmentation and other problems, balance water and oil, and continue to nourish and repair skin Usage: After cleansing, take 3-5 drops on palm and apply on face with fingertips. Massage the product onto the neck to ensure absorption. Apply twice a day, day and night. Specifications: Product name: Nicotinamide stock solution Efficacy: Improve dull skin tone Specification: 30Ml Ingredients: Niacinamide, Aloe vera extract, Licorice extract, Angelica extract, Salvia miltiorrhiza extract, Cornucopia fruit extract, Lycium barbarum extract. Package Included: 1PC Nicotinamide stock solution