EU and UK(new) registered product. Why is it better? 8.5% Niacinamide and 4% N Acetyl Glucosamine have a synergistic effect in reducing hyper-pigmentatio, reduces the appearance of oil on the skin and decreases pimple size within 2 weeks. What does it do. Research has shown that only NAG and Niacinamide have a synergistic effect in reducing dark spots . NAG decreases the appearance of oil on the skin and a precursor of hyaluronic acid increasing skin hydration, inhibits melanin production and reduces pore size. The results after only a few days will impress you. How to use it. Apply 2-5 drops to the face and neck area and massage gently Great for: Pimples, dark spots , mixed , oily skin . This serum is preserved using sodium levulinate (extracted from wood) and sodium anisate (extracted from star anise spice) . They are the only preservatives that are 100% natural and good for skin .