Red wine is a favorite holiday indulgence—rich, flavorful, and perfect for pairing with festive meals. But as delicious as it is, red wine is also notorious for leaving behind stubborn stains on your teeth. Its deep pigments, tannins, and acidity make it one of the most common culprits of holiday smile discoloration. The good news? You can still enjoy your seasonal sip without sacrificing your bright smile. Here are 4 simple ways to avoid red wine stains this holiday season.