Bests & Worsts Reviews from Amazon

I'll start with a little background as to why I bought this product. I'm a medical student, which leads to two things: bags under your eyes from lack of sleep and too much caffeine, and a bit of insight into stuff like hyaluronic acid! I was sitting in a connective tissue lecture, and heard that hyaluronic acid (which is naturally produced by connective tissue) can bind to tons of water. I decided to do some research to see if it can penetrate the skin, or if it just sits on the surface. WELL, as it happens, it DOES penetrate the skin according to the scientific literature (woohoo!), and can go quite deep. So, here's how I recommend using it (since there are no instructions). Start with clean, dry skin. Apply the serum where you want, and let it soak in for like, 15 minutes or so. You won't see a lot of improvement, you're just letting it get down in your skin. THEN apply a good moisturizer over it. Finally and importantly, make sure you stay hydrated, so you're hydrating your skin from the inside AND out. This is just my two cents on it, and like I said I'm a student so this is in no way medical advice or anything. I should also mention that I tested it on the back of my hand 24 hours before putting it on my face, since so many reviews had allergic reactions.