Keratin infusion system proves there is always room for improvement. KIS combines the best of American and European hair care in a complete and unique hair care line. The system contains a revolutionary formula that focuses on repairing hair from the inside out. While America specializes in hair repair, Europe is a leader in hair coloring and perming techniques. KIS now brings together the best of these two worlds in a revolutionary hair care series, with the Keratin Infusion System as a common denominator for all products. In addition to the special keratin infusion system, the products offer a number of other important benefits. KIS products are not tested on animals. In addition, the keratin used in the products is obtained from the wool of sheared New Zealand sheep. So no animal by-products are processed and the products are not harmful to the environment. The packaging is recyclable. Anyone who chooses KIS decides for comfort and quality.