By Erica Metzger
I'm nervous to color my own hair -- will everyone know I did it myself?
The trick to making it look completely believable is to stay within two shades of your natural color, says Los Angeles-based celebrity colorist Lorri Goddard-Clark. "That means you can go a little lighter, a little darker, or cover your grays and get good results," she says. Leave major changes, like going blond, to the pros.
How do I pick the right shade?
Make sure you use the chart on the side of the box -- not the model's hair -- as your guide, says Harry Josh, John Frieda celebrity colorist. If you're torn between two shades, always pick the lighter one. It's much easier to go darker than lighter if you need to fix it later.
Should I buy a warm tone or an ash tone?
Whether you're a brunette or a blonde, a warm shade is best if you have green or brown eyes or gold undertones in your skin or hair. "Warm tones also can give richness and life if you've got flat, boring color," says Josh. But if you have a lot of red in your hair and want less of it, a cool, ashy tone will help neutralize it.