I was disappointed with this product. I have curly/wavy hair that sometimes lacks definition and can go frizzy, so this was supposed to define and defrizz. . Did it? No. My hair was still frizzy, and although there was some more definition, it wasn't a massive improvement. This also had a really overly strong tutti fruitti smell, it was a bit too headachey for me. . So, I had frizzy undefined curls, I used this, and then still had frizzy undefined curls. So for the price this was a massive let down! This didn't work for me, and I was so hoping it would be the miracle product that could transform me hair. . Alas the search for the perfect serum goes on!