Now I know because it is so popular and many love it, it fascinated me, it dissolves all the makeup even the waterproof, I don't usually put on makeup every day so it can last me a long time, but I also use it in little quantity to eliminate the sunscreen that use daily. It doesn’t irritate my skin, especially my eyes that are very sensitive and tend to develop allergies with the wrong products and I don’t feel that left oil residue on my face anyways I always do the double cleansing. I would definitely buy it again.