L'Oreal Root Cover Up

I got to try L'Oreal root cover up free to review from influenster, I was excited to try this as my roots were showing bad and my grey hair, When I applied it the product stained my scalp black and burnt It did not do too good of a job on covering my roots and greys. It did not dry it left my hair sticky and stiff when I touched my hair my hands would turn black. I washed it out right away and even after washing my hair felt stiff and gross. I did not like this product it is not for me but it could work for others.