I don’t normally leave reviews but NonFiction by Nomi Vee deserves this one. I have never had a hair care system perform as perfectly as the Ker-a-tin system! I have hair to my waist and Ker-a-tin shampoo and conditioner makes my hair incredibly smooth and strong. I flat iron with the Keratin Smooth and I just love this. Thank you for making such a great system that works for my hair!