Here we present some teeth whitening products for at home use. Most of these items are available at Amazon.com 

Crest Whitestrips Dental Whitening System, 56 Strips 

Crest Whitestrips are the easy way to get whiter teeth in just 2 weeks. Wear Crest Whitestrips just 30 minutes, twice a day. Simply place the gel side of each strip against your front teeth and fold the rest of the strip behind your teeth to keep it in place. In two weeks you will have noticeably whiter teeth.

These thin, flexible strips conform to the shape of your teeth, and are coated with a gel that contains hydrogen peroxide, the same enamel-safe ingredient used by dentists for teeth whitening.

Professional 35% Tooth Whitening Complete Kits - 2 Pack 

Whiten your teeth in half the time at home with this professional strength formula. 3-8 Shades Whiter in less than 30 days, GUARANTEED. 30 minutes per application. Professional quality 35% carbamide peroxide gel used worldwide by dentists. Formulated with 100-percent pure formula — no fillers or additives used. See the difference after just on application. Optimized pH formula for higher whitening performance. Kosher USP glycerin (no animal by-products) FREE Remineralizing Gel to decrease or eliminate sensitivity that sometimes occurs after whitening teeth.

NEW Nite White ACP 22% Teeth Whitening 6pk Kit (Latest Product) 

Nite White ACP is the first whitener to combine patented Calcium Phosphate technology with the proven effectiveness of Potassium Nitrate to naturally fill microscopic tooth surface defects, smooth the enamel and increase surface gloss.

Opalescence PF 20% Teeth Whitening 4pk (Latest Product) 

New formula with fluoride and potassium nitrate to reduce sensitivity that is common in tooth bleaching. Opalescence PF is excellent for patients who have a known history of sensitivity to peroxide. Guaranteed fresh with shelf life of 2 years if refrigerated.

GoSMILE Advanced Formula B1 Tooth Whitening on the Go - 20 ampoules 

B1 provides the fastest, purest, safest and most effective tooth whitening results! * Professionally formulated, as are all GoSMILE products, by Jonathan B. Levine, DMD. * The two most important aspects of tooth whitening that ensure results are contact time that the whitener is on the tooth and the concentration of the active ingredient itself. * Patent pending proprietary formula allows for greater concentration + longer contact time on teeth = maximum penetration of ingredients and maximum oxidation of stains.

Teeth whitening toothpastes generally work through the use of abrasives which physically remove stains from the surface of the teeth.  Toothpastes are required to apply continuously for a period of time till you get that desired effect.  They are recommended for minimal stains such as coffee and tea.  Teeth whitening toothpastes and trays are ideal for those who don´t have time to make it to the dentist’s office.  Toothpastes and products only clean the surface of your teeth and don't have any way to actually whiten the stains below the surface of the enamel.  They remove surface stains and prevent new stains from building up.

Teeth whitening toothpastes seem to be popping up everywhere and you've got to wonder if they really work.  Toothpastes may have additional polishing agents and special chemicals that are more effective against stains than regular toothpastes and they are ideal for people who smoke, drink coffee and tea and eat certain foods that can stain your teeth.  There is validity to some of the whitening claims made by the manufacturers of teeth whitening toothpastes but the process by which these products achieve their effect may be different from that which you'd expect.  Certainly teeth whitening toothpastes can be the best choice for some people in some circumstances.  But before you can make a decision about what is best for you, you will need to know more about how teeth whitening toothpastes work. 

The primary mode of action of teeth whitening toothpastes is one of abrasion.  The formulations of some of them do include peroxide compounds, however only at low levels.  On a comparative basis, teeth whitening toothpastes typically are not considered to be the most effective type of tooth whitening products available, primarily because their effect is only one of removing superficial debris as opposed to creating a true internal color change as is the case with peroxide-based whiteners.  Many dentists believe that these products are a complete waste of time and money.  There are many arguments for and against teeth whitening toothpastes but when considering the questions as to whether or not they work we need to understand the underlying cause and effect of discolored teeth.  When considering the use of them consumers must first understand that discoloration can be as a result of stains to the surface of the teeth or due to the discoloration of the dentin inside the teeth.  The abrasive action of teeth whitening toothpastes help remove stains created by food and drink and polishes the surface of the teeth.  Consumers just need to be aware that they remove stains from the surface of the teeth but do not have any impact on yellowing dentin.  In addition, more abrasive teeth whitening toothpastes may create tooth sensitivity and make teeth appear more yellow through damage to the tooth enamel.

People have been whitening their teeth for not only hundreds but thousands of years. We can trace the history of teeth whitening as far back as 3000BC when recorded history tells us that  people were using what were called,  “chew sticks”, to clean and most assuredly, even whiten their teeth. Chew sticks were made out of branches. One end of the branch was frayed and used to rub on their teeth to polish and clean off food particles. 

We know that Egyptians used toothpaste around 2000 BC. It is recorded that they made toothpaste of powdered pumice stone and wine vinegar. And, of course, it was brushed on with - you guessed it- a chew stick! 

Seems that the Romans were also into toothpaste a few hundred years later but they added a twist to the formula. First-century Romans used toothpaste containing human urine since they figured out that the ammonia in urine cleans and, yes, folks, whitens teeth! 

Initially, the Dentist used teeth whitening formulas for cleaning of dentures. Gradually these formulas became known for general teeth whitening purposes. In the earlier days lime chloride was used for teeth whitening purposes. Nowadays, many chemicals and formulas are used for teeth whitening. Peroxide is one such agent used for teeth widening and is probably the most common one used for both professional teeth whitening done by the dentists and for home purposes in which home based whitening is done by applying whitening agents on the teeth. Hydrogen peroxide has been safely used in teeth whitening for over 100 years and is known as an effective ingredient by the dental community. 

The Truman Method: Dr. James Truman (1864) introduced the first successful method of bleaching discolored teeth. His method consists substantially of liberating chlorine form chlorinated lime by the addition of a weak solution of acetic, tartaric, or oxalic acid. Dr. Truman has suggested several ways by which the chlorinated lime and the acid may be brought together. “One process is to saturate the entire canal and the pulp chamber with the acid before inserting the chlorinated lime: another is to dip the instrument in the weak solution of acid, and then in the lime, and pack it rapidly into the cavity; and still another is to make a paste by the used of distilled water, and pack this into the tooth and then apply a stronger acid solution by means of cotton wrapped around the point used.” 

Another method of bleaching teeth with chlorine is that invented by Dr. Wright, of Richmond Virginia. This method consisted of forcing a continuous stream of chlorine gas-previously prepared in the laboratory-into the pulp-canal and cavity of the tooth by an elaborate apparatus made especially for the purpose. The method was very efficient and rapid in its action, but the complications of the apparatus and the trouble of preparing the gas were obstacles which prevented its general adoption, and it was therefore abandoned. 

Today, there are a variety of methods for whitening your teeth without damaging the enamel. People now achieve bright smiles even though they smoke cigarettes and imbibe teeth staining drinks like coffee and red wine as daily beverages.