DIY tooth whitening: Mix a tiny bit of toothpaste with 1 tsp baking soda & tsp water. Brush teeth for 2 minutes. Do this once a week until you reach desired results. From then on, use the treatment once every month or two.
If you swish with hydrogen peroxide everyday you will have the same results plus excellent gum tissue! Recommend swishing with peroxide for minutes morning and night. It kills bacteria that causes decay, gingivitis, periodontal disease. Worth a shot!