I think this was advertised as having 5% niacinamide.  However I'm not too sure if that is the version that I was given because the packaging appears completely different from the bottles I have seen in physical stores, the photo on this jolse website and any online reviews.  When I opened the lid there the pump just flew off completely.  From what I can tell the essence has a floral smell that I am not very keen on.  I wish to follow up on if this essence is the one that I actually wanted and was advertised on the website.