I was little skeptical about this product at first. I've tried a LOT of different hyaluronic ampoules from other brands, and I did not like how they were either still not hydrating enough for me, or too sticky AND did not hydrate my skin long enough. I saw this product on one of the Korean Youtubers channel and then started seeing it in other people's channels as well. I noticed from their reviews that this product was non-sticky and light. Therefore, I wasn't too sure about trying out this product, thinking light = less hydrating, which is true for most products. NOT with this one though! With recent sale though, I thought I would give it a try, especially since I haven't been able to find any ampoules hydrating enough for this dry winter weather.  I added this to my current skincare routine, and it's been keeping my skin hydrated longer than any other ampoules have. I have dehydrated, combination, sensitive, and acne prone skin, and this product has not broken me out yet. I've only used it for one day, so I'll have to continue to observe its affects, but I've been very impressed by its non-sticky texture with extremely hydrating abilities!!