These toothpastes can be purchased over-the counter from your local drug store or they can be ordered online. - Teeth Whitening Strips: These are thin invisible strips that are covered with a teeth whitening gel. Use strips for about a fortnight and you will be able to see the difference that these peroxide-based strips make on the color of your teeth. The results should last approximately for four months or so and it will set you back by more than $10 and less than $60. - Teeth Whitening Gels: Apply these gels with a brush directly to your teeth twice daily for about a fortnight.
The effects of these clear peroxide-based gels last for about 4 odd months and it might cost you about $15 - $20. - Teeth Whitening by a Dentist: Dentists use different types of tray-based procedures in which they apply a light to the gel on your teeth. This improves the teeth color between three and eight shades. This approach is the most effective out of the approaches listed above. This also removes stubborn stains deep in the tooth and can cost almost $800