Teeth whitening gel is a common option for people who want to whiten their teeth and brighten their smile. Although gels have a standard look, they vary greatly in the type and strength of the main bleaching ingredient used and in how they are applied.
The bleaching ingredient in teeth whitening gels is a form of peroxide, which is a weak acid. Hydrogen peroxide generally works more quickly to produce the free radicals that break down and remove the stains on a person's teeth. Carbamide peroxide also whitens teeth very well, but because it produces the free radicals more slowly, it generally takes longer to work. Both types of peroxide bleach well and are popular in teeth whitening gels. Generally, if a product is intended to be used overnight, it contains carbamide peroxide, which works more slowly. Often the products marketed as quick and easy to use during the day contain hydrogen peroxide. Side effects such as sensitive teeth and irritated gums are common for people using either type of teeth whitening gel. These side effects are not considered serious and usually end when the whitening process ends. Consumers should note, though, that using a product with a high concentration of either type of peroxide can actually damage the teeth. Damage can also occur when using a teeth whitening gel more often than indicated.
The Perfecta line includes some products using hydrogen peroxide and some using carbamide peroxide. They are available with different levels of peroxide concentration and indicate the level of stains they are designed to remove. Some are administered with a syringe, while others are squeezed from a tube. Some of the kits also contain a whitening toothpaste and a rinsing solution that washed away residual gel.
Dramatic Smiles offers a variety of carbamide peroxide products with varying concentrations of the bleaching agent. The firm offers a 30-day risk free trial of its products, free shipping and a money-back guarantee if your teeth are not whiter in 10 days. Many of their products are sold in kits, with re-fill items and supplementary products also available.
Ultra-White sells products containing carbamide peroxide in solutions from 16% to 22%. The gel comes in a tube and can be purchased separately or as part of a kit. Teeth bleaching trays are also available. Ultra-White offers a "buy-one, get-one" promotion on its kits and offers a money-back guarantee to customers who are not satisfied with their purchase.
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