This product seemed slightly effective. I used it before I applied my base and it helped keep my base on for longer and made my skin seem even more smoother, allowing the base to be applied to my face even more easily. This product is meant to smooth the skin, allowing your base to slide on easily and bond with your skin better. The packaging is pretty. It is a lovely, yellow colour – I would buy it for the packaging. It is surprisingly light and absorbed into my skin very quickly. I quite liked this product and I think that it should always be applied to prime the face, before applying foundation. I would definitely repurchase it once my current one is done.