Teeth whitening means removing yellow stains from teeth. but over the counter teeth whitening means lighten and whiten the tooth by one shade. Then over a counter whitening agent can work effectively. A white shiny tooth can boost your confidence as if your tooth is stained and you are giving an interview then you will be confused coz of your stained teeth. But many general things are also significant in the teeth whitening system such as your way of living, your diet, and your oral hygiene routine all are the basic tools of the teeth whitening system. but if it’s not working well then there are many best over-the-counter teeth whitening products.
The more likely busy mothers get busy at home, the best counter teeth whitening products for mothers can be whitening strips or ill-fitting trays. Using it every morning can prevent them from getting stained teeth. As far as young professionals and students are concerned, the best over-the-counter teeth whitening products for them can be advanced whitening toothpaste.
According to research, there are also 2 procedures for counter teeth whitening as follows Chemical bleaching by Carbamide peroxide and hydrogen peroxides and mechanical cleaning by abrasives but the results found is that bleachIng by peroxide is effective and producing good results as compared to the mechanical method. 
Teeth lightening and polishing method:
Carbamide peroxide and hydrogen peroxide are mostly powerful chemicals teeth whitening ingredients found in most over-the-counter teeth whitening products. These two products form a chemical reaction, called oxidation, to break apart the cause of the stains.
Tooth polishing is an oral process that includes smoothening the tooth surface, making it glossy and shiny, and reducing plaque accumulation, therefore, maintaining oral cavity health.
Recent research articles about tooth whitening show that it is safe and has effective results when the manufacturer’s given standards are followed, so far undesired side effects are probable of which the profession and users should be aware. This recent info provides a conclusion of recent research and analysis of the safety and efficacy of tooth whitening products.
When manufacturer’s standards are followed, hydrogen peroxide and carbamide peroxide tooth whitening products are safe and sound, and fruitful. Patients should be aware of the risk factors associated with tooth whitening products and instructed on pinpointing adverse effects so that they may seek dentist concerns if needed. 
Best teeth whiteners at home:
You must have proper dental hygiene, cleaned bacteria-free and stan-free teeth and gums, until you even want to do teeth whitening. It’s not all about color and shades and luster that’s just the one part of the picture but the main part of the picture is cleanliness and proper hygiene of your teeth and gums:-
Here representing some of the best tops reviewed teeth whiteners which are:
- Crest 3D Whitestrips teeth whitening kit.
2. Colgate Optic White At-Home Teeth Whitening Kit
3. Sensodyne toothpaste for sensitivity.
4..GLO Brilliant Deluxe Teeth Whitening Device Kit
5. Aura glow teeth whitening pen
Teeth whitening products sensitivity-free:
Here we are representing some whitening products that are sensitivity-free such as:-
2. Crest 3D Whitestrips Teeth Whitening Kit.
3. GLO Teeth Whitening Device Kit.
4. Aura glow teeth whitening pain.
5. Oral care charcoal teeth whitening toothpaste.
6. Go smile tooth whitening snap packs.
Top 10 best over the counter teeth whitening Products:
Here representing top 10 best over the counter teeth whitening products:-
These strips are inserted and left promptly on your teeth for half an hour, can be used once a day. These contain a small volume of H2O2 to better brighten your teeth gradually.
This statistic shows that most brands of tooth whiteners used in the U.S from 2011 to 2020. This data has been figured out from counted by Statista based on the U.S. Census data and Simmons National Consumer Survey (NHCS). According to this statistic, facts and figures show that 18.92 million Americans used Crest 3D Whitestrips in 2020. 
Initial results are seen in 6-7days, and final results last about 4 months.
Whitening toothpaste removes surface stains only and does not contain bleach; over-the-counter whitening products contain carbamide peroxide or hydrogen peroxide that lightens the color deep in the tooth. Whitening toothpaste can lighten the tooth’s color by about one shade. Supersmile’s toothpaste works as a whitening speedy agent gel that works together to fight cavities, make your enamel strong, and brighten your smile.It has a Flavor of Mint.
If you want an immediate enlightening result like you have any unexpected event or a special day suddenly then you should go for this one as it gives you prompt results. And as you want its prompt result then it is probable that a higher volume of hydrogen peroxide can provoke your sensitive teeth.
The designer made this product in a way that it has a 5 LED bulb that can speed up your brightening process. and apply the gel, and insert into the mouth and switch on the light and it is designed with an automatic timer that after every 10 minutes light will be switched off, and you can keep pursuing the progress and only use it for 30 minutes as recommended.
These teeth whitening snap packs are formulated with a non-sensitizing hydrogen peroxide gel and have a super effective ability. Few of effectiveness is being shown in one day. If using continuously for just one week to teeth, you will get amazing results.
Charcoal is producing in a large volume, and it is also the best ingredient in dental care. It’s an efficacious agent that takes away all stains on the surface of your teeth.
This is a top-rated toothpaste that does better work at the attachment to stains and deposits and plaques and removing them off and keeps teeth enlightened and makes your smile shinner.
Dr. Marashi said:- he recommends it as the best product for maintenance.
This is absolutely simple and easy option that might be used anytime. And it is the best portable pen. And with this whitening gel, u have to brush onto each of your teeth— and that’s it. for amazing results, use it once or twice per day and an hour before stop eating or drinking and also afterward.
It is a more fresh and sensitive-free toothpaste. If your teeth are too sensitive you’re finding for a toothpaste that is sensitive-free for daily use whitening toothpaste to keep up your bright smile, then this whitening toothpaste is best for you. It also has a chemical named fluoride which decreases the sensitivity. And also helps to prohibit cavities.
It is designed in a way that it has a blue LED light and fast speed heat and
whiten your teeth with this is a pain-free process and its results are long-lasting and will give you the best results even at home without having sensitivity as it is a clinically approved product.
It is provided with all-natural flavors to make the procedure more impressive and interesting. These strips are made up of coconut oil or mint essence for good taste. Each box packaging has 28 pieces that can be used for 14 days as recommended. It is an affordable and less expensive product. And is easy to use than other flosses.
Pros and Cons of over the counter teeth whitening products:
- Have a dilute hydrogen peroxide gel and they work very well.
- Used once a day for a specific length of time
- Easy to use.
- It gives your smile a dazzling boost up.
- Improvement on your physical viewed appearance.
- Whitening kits-The only process that can be done at home.
- Cheap and inexpensive.
- Not much harmful for your teeth.
- Have prompt results.
- Don’t last too long.
- Least effective.
- More expensive.
- Tooth sensitivity problems can occur.
- Not permanent.
- Uneven color of teeth matched with the crown color of a cavity.
As represent above all the procedures methods and all the pros and cons of best over the counter teeth whitening. Also, there is the below-mentioned research article and statistics of facts and figures.
- According to a statistic survey held in February 2020, 22 %of Britishers said that they mostly would get their teeth polished and whitened, with a further 10% reporting that they definitely would or that they already had. In the youngest age group 18 to 24 years of age, 40 %of applicants claimed they mostly would whiten their teeth. 
- This statistic shows the usage of tooth whiteners in the United States from 2011 to 2020 and a forecast thereof until 2024. This data has been figured out by by Statista based on the U.S. Census data and Simmons National Consumer Survey (NHCS). According to this statistic, 37.0 million Americans used tooth whiteners in 2020. This figure is estimated to decrease to 35.22 million in 2024