How can i whiten my teeth without professional help?

You can try any of the OTC products sold at drugstores, but the strength of the carbamine peroxide will most likely not be as strong as what is dispensed by your dentist. In addition, your dentist will fabricate custom trays that fit your mouth perfectly, allowing the gel to get into all the nooks and crannies.

Stop smoking and stop eating highly pigmented foods. Only partially effective. Have your teeth professionally cleaned. Know that whitening toothpastes are very abrasive. OTC products, like mouthwashes or lightening strips are only partially effective. Dentist-controlled whitening is the most effective rod to follow.