Professional Keratin Smoothing Treatment Price is a technique purposely designed to make the hair smooth, frizz-free, and shiny. Keratin is the protein that is infused into the hair shaft to make it more stable and reduce friction. Accordingly, the price will depend on the location of the salon, the hair length, and the brand of the product. An average treatment may vary from $150 to ... https://themonshas.com/hair-keratin-for-women/keratin-smoothing-treatment-price