Is your naturally brown or black hair dull and mousy? Auburn reds that are labeled "intense" add instant, decadent brilliance.

The darker your blonde, the lighter your auburn should be. Shades labeled "light" and "natural" best complement hair that starts out dark or medium blonde.

The less exposure to sun and water, the better for your auburn. Because the molecules in red hair color are bigger than other shades, they do not penetrate the hair shaft as deeply and are more prone to fading.