Was not impressed with this product - maximum colour performance - I disagree.. although 9.0 is not my usual colour (I use 10.1 but was sent 9.0) it was very "brassy" . It is definitely hard to find the right blonde.. and all hair colours differently, I would possibly try it one more time to see the outcome with more regrowth. - 100% grey coverage - I don't have any greys so can't comment. - visibly Improves hair quality - as I only died 1cm of regrowth it was hard to tell. My hair did feel silkier after. -optimal scalp comfort - I expected to not get the itch or burn that other hair dyes with ammonia do however I still found this to irritate, it didn't have as strong a smell as others though. The fragrance was nice although I prefer the normal Garnier smell.
I would probably try it one more time to see if I can get the desired colour.
The product itself was simple and easy to do, the instructions were easy to follow and everything made sense. I will admit that I didn't feel hugely confident to do the dying myself, so had a friend do it for me. The smell was pleasant, no offensive chemical smells you get with other dyes. It was easy to be put in and, after the stated time of 30 minutes, I washed the excess dye out. The fact that it came with enough conditioner to last more than one wash was really handy. After washing the dye out, I dried my hair and was excited to see the result. I was a little disappointed as it didn't work out as well as I was hoping it would. I had a mixture of browns and blondes in my hair, and the colour didn't take too well to the blonde colour that was in my hair. I also found that the roots of my hair were a lot more red than any of the rest of my hair. I was expecting a reddy colour to it, being that mahogany brown is red based, but I didn't expect so much more red at the roots. I also found that after the first wash, more colour came out and my hair has started looking more and more like it did prior to dying it. Overall, I'm not hugely satisfied with how it turned out, but I do like the colour and the fact that the dye has no ammonia in it.
Tips: If you have any blondes in your hair, leave the dye in longer! Also, it may be beneficial to do the dying twice to ensure you get the best colour outcome.