To be honest, I was not impressed with this product at all :(

The product took a very long time to dry (it didn't), and every time I touched it or the top of my head touched something, it would stain it with the dark colour. It's highly pigmented so it can cover up any grays or roots, but it leaves a crustiness to the top of my head as well. I tried combing it out to help soften it, but then my comb ended up getting stained which was surprisingly difficult to clean off. In theory, it's a good idea since it's small and it can be done on the go and when traveling, but the lengthy drying factor is a big issue.