Let's start with the positives. Love, love the little application brush- it isn't flimsy which makes applying the dye so much easier. The little container bowl to mix the colour is also handy.
I applied as per instructions ( around hairline and middle Part ) then applied on any other areas I could see - especially where I have grays showing and growing.
I left on my hair for 15minutes even though it states that it can be done in 10.
Once washed out and dried I noticed it didn't cover any of my grays and my regrowth is still slightly showing.
I wouldn't use this again and would recommend just purchasing a normal box dye to cover roots in between hairsalon appts.
I feel this product is basically the same thing as the normal hair dye but repackaged with a brush and smaller containers. First of all, the brush is very hard and scraps your skin, secondly there's still quite a strong ammonia smell to the mixture. There's an excessive amount of plastic used in this package that doesn't need to be, yes the end result is fine but one doesn't need to buy this to have the same result, you can buy a normal pack and just use a portion of the package for the same result and use a clean toothbrush to do the job.
Tips: Use your own brush