I purchased the powder which is unprocessed and used it at home. And it didn't dye my hair brown/red,esp from the first use. Then in few months like after the 3rd use maybe....it started showing a very faint dark brown which is hardly visible unless if it is under the sun and since my hair used to be very dark I noticed. Anyways I didn't use for its dying purpose, but because they said its good for your hair and it makes the hair shafts thicker and resistant, which I witnessed when I was styling it with pystra (the heat couldn't get into it easily, even though my hair was thick before too, it just became more thicker....)