Sometimes hairstylists disappoint, and other times the dark-haired beauty on the hair-color box lets you down -- even after a careful application, a thorough rinsing and a healthy dose of post-treatment conditioner, you still feel more like a washed-out zombie than a raven-haired knockout. Before you reach for the bleach or, worse yet, the razor, remember that there's hope for the over-dyed. A little more effort -- and a few key tools -- can still save the day and your brutally brunette tresses.

Step 1

Wash your hair with a clarifying shampoo. Rinse and repeat as many times as needed to achieve your desired hair color. For best results, begin your multiple washing sessions while hair is still wet from your initial coloring.

Step 2

Pour lemon juice liberally over your hair and sit in the sun -- or apply heat -- to achieve a lighter hair shade. According to hairstylist Barb Quinn, writing for GetTressed.com, the more heat you apply, the lighter your shade will be. Be careful not to get lemon juice in your eyes.

Step 3

Mix equal parts baking soda and shampoo. Work it through your wet hair. Use the hottest water you can stand -- without scalding yourself. You will have to repeat the process quite a few times before you see results.