The first time I used it, I had pink hair. I’d used a semi-permanent dye over the top of my naturally dark blonde hair. When I went to remove the color, it was completely gone — I was actually ...

Green hair was a surprising hit with men who seemed entranced by the odd color. Instagram/Sabrina Sallum “It seemed like they literally just liked me for my blond hair,” Sallum said.

Believe it or not, color theory is a big part of finding the right color-depositing shampoo for you — you want to pick the opposite color on the color wheel for your hair.