BIOGREEN ROOTS Ammonia-Free & Paraben-Free Herbal Hair Dye Shampoo for Women & Men – Natural Color Haircare Wash for Gray Coverage, Nourishing Shampoo for Color Care – Brown Black (10 sachets x 25ml)

This stuff works very well. I was disappointed I had to keep it in as long as regular hair dye but it seemed to have a very strong pigment and covered all my grays very well. It was a but pricey, at $24 so I'm hoping I can get at least 3 uses. I have tons of hair but only use on my roots.

Very convenient especially when traveling, you can just take one of the package and they are easy to use 😀.

Muy facil de aplicar no mancha la piel y no irrita ni maltrata el cuero cabelludo.

so wonderful to make the hair supple and black for a long time than other dye product. I will come back .

So easy to use anyone can do it just shampoo in leave on recommended time and shampoo out. Grays are gone!

I wanted to love this, as the ease of a shampoo dye is much easier than regular coloring, but it made my hair feel horrible, like straw. I couldn’t get my finders through my hair when i was rinsing it out. And on top of that, it did not cover my greys or color my hair much at all.

Does not work well. Applied many times but always comes out 70% black. Looks black when applied but some wash away when showering.

Effective, works and is safe