“I mixed 20ml of 8A and 40ml of 7N to cover my 'grey-in-front, darker at back' 67yo hair which had an existing (salon-applied) colour/dye and about 2.5cm of regrowth. Extremely happy with the result which turned out exactly the same as my usual salon colour (guesswork!). Easy to apply and colour holding very well so far. Next time will make slightly heavier application on front scalp to ensure complete grey coverage where hair is lightest.”