Garnier's keratin sleek kit is a kit meant for dry and frizzy hair. The products were not perfect for my hair. I thought the products made my hair shinier, but I felt that the hair didn't get enough moisture. It works, it does its job, but not for my hair as I have a hard time saying if it really reduced the frizz since my hair is very frizzy. This kit gives okay results but not perfect ones. If I had to choose one product from these four, I would choose the hair mask as it rehydrated the ends of the hair well. The review was conducted on behalf of Smartson - the test pilot was allowed to try the product for free.