Ok so I have never heard this but I'm glad I came across it. It really works. So I order the L'Oreal HiColor copper red from jet. They sent me intense red. I didn't pay attention and the boxes look almost identical. I dyed my hair before I realized it was the wrong color. I just found that you can mix baking soda and dandruff shampoo to remove color. I washed my hair with hot water with just head and shoulders first. Then mixed equal parts baking soda to shampoo and left it in my hair for 20mins then rinsed. Then I washed it one more time and conditioned. So much red came out! Now I can re-dye tomorrow. I got the sizzling copper. Hopefully I can get the copper look before Saturday. I'm really looking forward to St Patrick's Day.