I first started going grey in my early twenties, so I had to colour my hair. I hate the damage it does to my hair and I've tried many products. I can honestly say I was so impressed with this product. It provides a really good clarifying shampoo which you use first to get rid of build up on the hair, then after you wash the colour out you have another shampoo to hydrate and lock in the colour as well as a special conditioner you leave in for 5 minutes. The result of all this good care coupled with the fact that there is no ammonia, parabens or resourcinol is your hair looks and feels good. The colour result was superb! So happy with it, some colourants produce effects which are too dark. This is the most natural looking colour result I've ever achieved. Will definitely continue to use this.