I had been using this niacinamide by the inkey list the first day It arrived for me and I really do enjoy this one but I believe that this has helped my skin so much from where it was before I had used this product. Also, this has amazing ingredients such as squalene, glycerin and hyaluronic acid all helping in hydrating the skin, the hyaluronic acid draws in moisture from the surroundings and gets absorbed into the skin. Squalene helping with the hydration aswell as glycerin. This has a nice texture on the skin and helps with oil production and redness within the skin. In this version of the niacinamide by the inkey list it has 10% niacinamide and 1% hyaluronic acid compared to the ordinary which is the same amount of niacinamide but 1% zinc instead. For me i prefer the inkey list one over the ordinary one, as it has that extra boost of hydration to it, and has better overall ingredients than the ordinary one in my opinion.