I bought this because I heard it was an "SKII dupe", but unfortunately I had problems with this stinging my face sometimes or making my skin feel sticky (I did not have these problems with SKII). After a few weeks, I eventually figured out to not combine this with certain skincare items because of my oily/sensitive skin. I now like the item, but it was a hassle to keep experimenting with what products I can or can't use this with.