Colour B4 Hair Colour Remover is does amazing wonders, if you previously dyed your hair and you don't like the outcome, BUY THIS PRODUCT! its not a bleaching kit, and contains no ammonia. Follow the instructions carefully though for best results! This product does have a perm like smell to it though (make sure your windows are open as the smell it really over powering and made me kinda nauseous.
Colour b4 hair color remover is used to remove semi-permanent and permanent hair colors to restore your hair to its natural color again.

I used this product to become my natural light blonde again, as I dyed my hair medium blonde, then bright red and purple ombre, then went over that with a medium dark brown thinking it would fully dye my hair brown but instead I got brown steaks and blotch's of browns all throughout my hair because of the red and purple. It looked like a mess, so I bought this product, followed the instructions carefully, left on for 60 minutes and when I washed and buffed my hair... I was my natural light blonde again, (I did have a slight tinge of pink from the red in certain parts on my hair, but I still had enough application to apply it again to JUST those spots. And no more colors! Just pour natural blonde again.
And its a reasonable price for only $14.99 at WalMart.
No more paying those nasty salon bills to get rid of that horrible hair dye job!

I have naturally black hair, and have been going grey since I was 14 and have been dying grey roots back to black since then (minus a few stints as a blonde or redhead) I am now 29, and all my hair has now been subjected to black dye. I decided this year, I wanted to lighten my hair to a medium auburn. Removing black hair dye can be very difficult, and costly at a salon, so I decided to try Colour B4, purchased for 13.99 at Rexall. It contains NO BLEACH AND NO AMMONIA. So I figured, why not. It mixed very similarly to home hair dye, and sat on my hair for an hour. It did not get hot, but I did have a bag on my head. After the hour you rinse for 5 mins, then add half of the bottle of buffer (included), and scrub up for a few mins, then rinse and repeat. I let my hair dry completely so I could asses how much color was removed before I dyed to my new auburn color. There were a few pieces near my face that were a dark brown, but overall, I was a light brown color, and almost blonde on some parts. I was impressed how well it did with bleach or ammonia. After my new color was added, those darker parts actually made the color look more natural by added depth to the color palette.