I've been using this product for about a week now and am surprised that it actually does reduce under eye puffiness. I was very skeptical because nothing ever seems to work for me the way it does for so many other people, but I'm glad I gave this a try. Over the past year I've developed allergies for the first time in my life and my eyes feel so heavy like they're pulling down my whole face, even when I get plenty of sleep. I have huge bags that are pretty much impossible to hide with concealer alone, but this product helps make them manageable. After washing my face I apply a regular daily moisturizer and then this clear gel. It is lightweight and odorless and glides on effortlessly. It's not sticky at all. Within a few minutes, as it starts to dry, a slight tightening effect on the skin is felt. I also like to apply some to my eyelids for this reason, just so they don't feel so fatigued.