I found this product a few years ago when I was looking to just cover some greys. I used to get highlights and lowlights etc and was sick of the cost and the time spent sitting at the hairdressers - I used palest soft gold blonde which coloured the greys but not my base colour (a mid dark blonde) so I ended up with what looked like perfectly natural highlights. I have continued to use this and as gradually I've greyed further, I've got a bit blonder but not grey. What I LOVE about this is that a) it's harsh chemical free b) it's quick easy and odourless to use c) it's very cost effective - I do a full head colour every 6 - 8 weeks so it's costing me less that £100 per year which is less than one trip to the hairdresser for colour - and it looks great! Service is quick, efficient and it's a British company I'm delighted to support. I've recommended this to so many friends, many of who have become total converts like me!