I love this product. I was told that it strengthens the skin barrier to lock in nutrients and moisture as well as increase hydration. I definitely agree with that. I put this on at night and rinse my face in the morning and my face feels and looks SO much better than it would have if I didn't use the product. I have sensitive skin, I'm allergic to several common ingredients in beauty-related items, and I also have eczema. This product caused me zero irritation. It has hyaluronic acid in it as well as some other nice ingredients. The fragrance is light and refreshing but also goes away a few seconds after applied to the face. I'm a newbie to the more advanced skin care world (I only used to use moisturizer) but this product has me hooked.