My father used the Garnier black hair color and it was not a good experience for him.
The color effect was not for long, within three days after use, it started to get off and the white color of hair came back.
After applying the hair dye, just as it was mentioned on the packet instructions, the hair got very hard and was very difficult to spread the dye all over the hair uniformly. At the end we could see some places where the dye was not even had a mark.
Better go for other products.