I figured I would give this a try because it was natural and I have reactions to chemicals. No reactions, easy to use and 100% grey coverage. You apply it then rub it in for 10 minutes and wash it out. It has no brassy tones. It was very easy to use and I love the results.

I have long wavy/curly hair that's naturally dark brown with cool undertones (included pic). I used this as directed on dry hair, lathered for about 10 mins and left it on for an additional 20 mins. The color ends up a very rich cool true black. There are no blue undertones in the sunlight like some black dyes but still a cool toned black. My after pic is after one wash so I'm not sure how much it'll fade over time.The bottle seems to have two chambers with probably a dye and some sort of developer, and when you pump it out, they come out of the nozzle together. This is really convenient and way less messy than having to mix it yourself in a bowl. It also allows you to only pump out the amount that you need. I have very long and thick hair and didn't even use half the bottle so I know I can get 2-3 uses from one bottle. Those with shorter or thinner hair can probably get many more. Another thing I noticed is the smell is a lot less strong and chemical-y compared to other dyes I've used, I didn't have to open all my windows and air my apartment out because there was no lingering smell.Overall, i think this is much more convenient than traditional box dyes I've purchased. I would recommend using a good conditioner immediately after dying, I didn't but feel like it would've made my hair look smoother and more tamed.

It’s best product so far great results

Dyed my hair with this product. I received this product yesterday. I love the set up inside the container, love the way it gians like shampoo. Easy to spread all over my hair like shampoo. I prefer this kind of product than those store bought one's. Love it, love it.