Teeth Whitening Strips – Are They Safe & Effective for Your Teeth?

Teeth whitening strips are an inexpensive and efficient method to attain white teeth. Teeth whitening strips work the same way as bleach works for clothes. There are many products available in the market like teeth whitening gel, pens, trays, etc. But teeth whitening strip is the best option as it is effective and pocket-friendly.

The first thing a person notices in you is your wide and bright smile. But it could be quite embarrassing if you have stained or yellow teeth. In many cases, it lowers your self-confidence and could be depressing as you may not be able to express yourself completely.


Let’s see more about teeth whitening strips, its use, effects, and side-effects.

What are teeth whitening strips?

These are strips made of a flexible disposable plastic material which is coated with a thin layer of whitening gel. This whitening gel usually composed of hydrogen peroxide or carbamide peroxide. You have to place these whitening strips on the surface of your teeth.

These strips are made in a shape which would fit any teeth surface. Whitening strips do not affect the dental caps or any other restorative appliance fixed on teeth.

How does it work?

Whitening strips are coated with hydrogen peroxide or carbamide peroxide which has bleaching properties. When we apply these strips, the hydrogen peroxide penetrates the surface of the teeth.

It causes bleach action where oxidation of stain molecules happens and as a result discoloration fades away.

Within three to four days, the discoloration of teeth lightens. The result could be white teeth but it all depends on the extent of teeth discoloration.

Why is the whitening strips best option?

The whitening strips are the best option because other teeth whitening products, such as pens and gels, are not able to make proper contact with the teeth for a longer duration.

The whitening strip is a safer option as it has minimum required amount of hydrogen peroxide. On the other hand, whitening gels and pens have a large amount of hydrogen peroxide than whitening strips.

Using mold and trays with whitening gel is quite uncomfortable since you have to place it in your mouth for hours.

How to use teeth whitening strip?

  • Peel the strip and align it with gum lines.
  • Press gently to form a proper contact between the teeth enamel and the strip.
  • Wear it as per the given time which varies in people depending on the requirement. Mostly it is 30 minutes. Wearing time should not exceed as it might erode the enamel layer leading to sensitivity and tooth decay.
  • It cannot be reused, so remove and discard it.
  • You must also read the instruction correctly before using it since different products might have different guidelines.


Affordable and easily available

Teeth whitening strips are affordable and a one-week kit would cost you anything between $20 to $40. It is easily available at nearby pharmacies and stores. You can even buy it online from websites like Amazon.

Easy to use

The whitening strip does not need any experts hand as you can read the instruction given with the product and apply it by yourself.


The whitening strip is more effective than whitening gel and pen as it makes proper contact with the teeth surface.

Safest option

Whitening strips have only 6% hydrogen peroxide, a lower concentration than other teeth whitening products.

Instant result

You can get results in three to four days with whitening strips.


Uneven whitening

Due to its 2D structure, the strips cannot reach every part of the teeth. Therefore, there is a high possibility of unevenness in the whitening procedure. You might be left with yellow edges of teeth which could be more embarrassing.

Erodes enamel

Prolonged use of whitening strips may erode your enamel and lead to cavities which damage the teeth completely. If your teeth are sensitive, you must use a whitening strip with a lower amount of hydrogen peroxide. Whitening strips should not be used if you have a sensitivity or rotten teeth.

Low durability

You must understand that teeth whitening strips do not provide a permanent whitening solution. The effect of whitening strips lasts for a maximum of six months.

Causes sensitivity, inflammation, and gum disease

You should always use a whitening strip with bit lower concentration of chemicals depending on your need as an excess of it damages the outer protective layer of teeth leading to sensitivity.

Avoid the contact of hydrogen peroxide with gums as it causes inflammation leading to gum disease.

White Spots

After using the strips, you might see white spots on the tooth surface which is due to the water loss in enamel. However, these spots fade away with time.

The best option is to keep your teeth from discoloring

Before using whitening strips or any other whitening treatments, you should always consult a dentist and discuss your concerns. Although, these options might work to some extent. The best way is to maintain a healthy smile through proper oral care and prevention.

Below are some of the preventive measures to maintain a healthy smile –

  • Must follow a daily routine of brushing, flossing and mouth rinse.
  • Avoid smoking and chewing tobacco
  • Lessen the intake of caffeine
  • If your teeth are prone to stains, use a straw while drinking soda or juices.
  • Routine check up to the dentist or dental hygienist.
  • Rinse your mouth after every meal with regular water.
  • Avoid eating sugary, sticky and starchy food.
  • Keeping your diet healthy and simple helps in keeping your teeth healthy.

Over to you on teeth whitening strips

The teeth whitening strip is an effective and affordable way of whitening the teeth. But before using it, you must be aware of the adverse effects it might have on your teeth. You should strictly follow the instructions provided on the whitening strip cover.

You should consult a dentist before going for any kind of whitening strips since your teeth discoloration or color would be different from what others may have.


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