I ordered the product to remove a red coloring Schwarzkopft shine 872 of my bleached hair. Thinking I found my girlfriend discoloration but no. It worked well remove the red and black in my mid-length hair and made my lighter hair between red and copper but not a pretty copper core. But overall the product to run! On my root that has let my natural color that is dark brown, I still recommend this product to erase a color or too dark to return to your natural color if you had not bleached hair. The product dried me hair so I had to make a conditioner and care after the last shampoo. I did not feel smell the application but in the shower and after so, a slight smell of pet ... So I anoint me to camouflage the smell that I think should go after some shampoo on my hair because the smell is light but it still senses.