Longing for brighter teeth without the hassles and expense of professional treatments? We talked to celebrity dentist Dr. Kevin Sands, a cosmetic dentist in Beverly Hills whose client list includes Taylor Swift, Britney Spears, Denise Richards, Megan Fox, Charlie Sheen, Robert Downey, Jr. and others about simple home whitening tips. Here’s what he shared:

1. BAKING SODA

Baking soda should be used alone on a damp toothbrush or mixed with toothpaste to neutralize the salty taste.

2. XYLITOL SUGARLESS GUM

Chewing sugarless gum immediately after eating or drinking stain causing foods or beverages such as dark berries, red wine, and coffee can help keep stains at bay. An added benefit to choosing xylitol is that it’s been shown to help prevent decay.

3. STRAWBERRIES

Did you know that strawberries contain natural teeth whitening agents? Cut a strawberry and rub it directly on teeth. Brush with toothpaste immediately after, though, since strawberries are high in sugar and acids.

4. HOMEMADE TOOTHPASTE

Try this recipe for a simple, inexpensive and effective alternative to whitening toothpastes: mix baking soda, hydrogen peroxide, salt and regular toothpaste and brush with the mixture twice a day.