You need to keep this in your cart, and keep checking to see when you can get a discount. I find that you need only a small portion per use, because it goes a long way. It’s surprisingly moisturizing for how light it is. It’ll be good for summer, but people with dry skin especially in the winter, do not rely on just this please! I love numbuzin! However, there are other numbuzin serums which are better for extremely dry skins.