Review (5/5): Worked to remove permanent dye
My hair went from very dark brown to dark yellow blond with just one twenty minutes application as recommended.
Keep in mind you will need to apply 10 vol developer for 5 minutes if you plan to recolor your hair right away. And I suggest to have some hair dye on hands since hair color you get after using this remover is individual and kind of unpredictable.
You will need gloves and a cap as well. They're not provided.
Smell is not that bad and didn't bother me at all.
Good luck!