The present formula was originally created for the medical market to give patients with bumpy or irregular skin a smoother skin surface. This product lays down a smoother layer of "second skin" that smoothes out skin irregularities and fine lines. The present is essentially a "clear makeup" for flawless skin. It is formulated to be used as a last step prior to any makeup to form an invisible barrier that "seals in" moisture for chronically dry skin and active ingredients from treatment products. It keeps out harmful environmental elements by acting like an invisible band-aid. It also contains lysozyme, a natural antimicrobial agent to keep skin radiantly "clear."
I love this primer, it's the only one I really like that doesn't cause my eyes to water. You don't need to use a ton of it, just a little dab will pretty much do your whole face and neck. It does take a few moments to dry, but I use that time to my advantage to apply my concealer and highlighter - it seems to help them to spread better and more evenly than applying to just dry skin. The smell (to me) does take some getting used to, it's not your usual cosmetic "pretty" smell, but it's not overwhelming and it does go away after the product dries. Kind of reminds me of Elmer's Glue, if you remember that smell! But it does a nice job of priming my skin for makeup and can be used alone when you're not inclined to "do" your face - it leaves a smooth and subtle finish, and once dry, you can just pat on a bit of blush and you're done. I really love it, and one tube lasts a very long time. I think it's a good buy, at least for me.