Breakthrough patented technology reduces grey a little bit with each shampooReduces grey a little bit with each shampoo for subtle, gradual results. Use daily until you like what you see, then regularly to maintain the look you like.How much grey you get rid of depends on how often you use it.Cleans and Revitalises HairIt's a shampoo that gently and thoroughly cleans hair. Increases volume for a thicker, fuller look.Reduces Grey with Each Shampoo, Gradually Reduces Grey, Subtle, Natural-Looking Results, Gently Cleans & Revitalises Hair, First Shampoo with a BrainVisit ControlGX.com for more information.