My hair has endured being colored for the last 15 years and I have tried many shampoos, both salon and store bought shampoos. My hair is shoulder length, medium brown color, wavy hair. When my hair is subjected to humidity, it will get coarse and frizzy. The Nexxus Color Assure products have helped my hair to stay smooth during these types of weather conditions. The Nexxus products have made such a difference in my hair. The color does not fade as fast and my hair feels nourished and manageable. Effectiveness When I use both the Nexxus Color Assure shampoo and conditioner together, my hair ends up looking shiny and smooth. Even when I only use the Color Assure shampoo with another brand conditioner my hair looks and feels healthy. I prefer using both the shampoo and conditioner together for the best result. Scent Smells great, very pleasant, clean, light scent. My hair smells great after shampooing with this product. I am very happy with this product and I hope that this product is always available.