So this was recommended to me by a friend because she too deals with split ends and frizzy hair. I got me some a few days ago and tried it out, just a little smoothed over my hair ,concentrating more on the ends, is all that is needed. It really masks the appearance of split ends and helps with my frizzy mess. With any serum ,I believe, the thing is to use very little ,Else your Hair will end up greasy. I'm pretty pleased with this split end serum.