The new Nano Intense Duo Pack contains Clarifying shampoo formulated to best prepare the hair for Keratin Treatment Nano Intense Treatment original formula which gives supreme anti-frizz and volume reduction results The Nano Intense lotion is suitable for the majority of hair types. The process is simple and easy to do. On completion the hair feels fresh, soft and lovely to touch. So long as sulphate shampoos and conditioners are used results normally last 3 - 4 months