Love the Tresemme Keratin Smooth Range! I mostly use the shampoo and conditioner, and sometimes incorporate the smoothing mask into my routine, especially in the colder winter months. I have naturally curly hair and I have found as far as "non-curly hair products" go, these work really well for me. It moisturises my hair and leaves it softer and less frizzy, without weighing it down when I do decide to wear my hair curly. Definitely an affordable product and I also love that the shampoo and conditioner come in large (750ml) bottles, so it takes a while before I run out and need to buy more.