When is the best time to color hair, when it's clean or dirty?  Many men and women now color their own hair at home, and many are doing it all wrong.

There are many tricks to coloring hair that could make your hair color last longer and your hair look and feel better.

What should you look for in the ingredients or better yet, what shouldn't be there?  Is going lighter or darker more stressful to hair?  What type of shampoo should be used on colored hair?  Is it better to dye clean or dirty hair?  And what if you mess up?