Teeth whitening help!?

I want to bleach my teeth. I have used the strips and my teeth are very sensitive and when I put them on they stung crazy pain. My friend told me about bleaching my teeth. I think I want to do this, where can I buy an at home kit? I DO NOT want my teeth to hurt when I do so. Im looking to spend around 40-50 dollars on a product, please help!
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the whitening products the are sold do not really work because the amount of whitening chemical there legally allowed to put in them is not enough to do anything, so only a professional could get you the white smile you see on celebs. that said you could use one of these natural tricks. DIY strips: Combine your toothpaste with baking soda. Apply paste to aluminum foil, and cover teeth. Leave for 1 hour, and brush after removing. Repeat twice a week. Berry effective: Rub a cut strawberry on your teeth (or just let mashed berries sit on your teeth) for a few minutes before rinsing. The Malic acid in the berries helps remove stains. Lemony fresh: Squeeze some lemon drops on your toothbrush, and give trouble spots a good scrubbing. Sage advice: Native Americans used sage to whiten teeth and freshen breath -- try this wise recipe for salty sage tooth whitener: INGREDIENTS 2 tablespoons dried sage leaves 2 tablespoons sea salt 1. Preheat oven to 250F. Using a spice grinder or a mortar and pestle, grind the salt and sage together. 2. Spread mixture evenly on a baking sheet and bake in preheated oven for 30 minutes. Allow to cool, then stir to blend. 3. Scoop some of the mixture onto your toothbrush and brush vigorously. 4. Rinse thoroughly. Cut out the culprit: If teas, coffees, dark-colored sodas, and red wine are constants in your life, replace them with colorless liquids (aka water!), and be sure to brush your teeth after every meal to remove residue. hope this helps.
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