Dyeing your hair can be a great way to cover up roots and give it a new look, but not if you have greasy hair. Grease and dye are two of the most difficult substances to remove from your hair, with grease being the worst offender. Grease will coat the strands of your hair with an oily residue that makes it impossible for any product to penetrate your scalp or follicles. And forget about trying to comb through the mess-you're only going to make it worse!

Greasy hair can be a condition that you're born with, or it could simply come down to your habits. Greasy hair can be caused from not washing your hair for about three days in a row. As the natural oils from your scalp start to build up, they transfer onto the strands of your hair and make it seem as if your hair is greasy. The best results for removing this type of hair come from using a clarifying shampoo to strip the oils off of your hair.