woman reaching for blu whitening device

Is Blue Light Teeth Whitening Safe?

In the pursuit of brighter smiles and pearly whites, people are constantly exploring innovative methods to achieve that sought-after Hollywood smile. Among these methods, blue light teeth whitening has been a popular method on social media sites and beauty blogs as fans of the technology mention its convenience, ease of use, and dramatic whitening results. 

Before you begin such a regimen, knowing how to safely use blue light devices for the best results is important.

This guide explains everything you need to know about blue light technology, blue light teeth whitening kits, and how the unique advantages of LED light could benefit your oral health.

Table of Contents

  1. What is blue light technology?
  2. What is the safest form of teeth whitening?
  3. How safe is blue light technology?
  4. How to use blue light safely
  5. How to use blue light teeth whitening agents
  6. Is blue light good for gums?
  7. What are the other types of teeth whitening?

What is blue light technology? 

Blue light whitening uses a gentle yet robust low-frequency lightwave technology, which has applications in various fields, including dental care, skin care, and mood regulation.

In dental terms, blue light technology accelerates the power and strength of teeth whitening gel to enhance teeth whitening. Blue light can also help to eliminate germs in the mouth, meaning you can help to prevent conditions like gingivitis or cavities. 

Blue light toothbrush

Is blue light teeth whitening safe?

Blue light teeth whitening is generally the safest method. The blue light used in dental procedures is generally safe, as it falls within a specific wavelength range, is safe for gums, and does not increase tooth sensitivity.

1. Has a safe wavelength range

Blue light falls within a specific wavelength range (around 400 to 500 nanometers), which has been extensively studied and deemed safe for oral use.

2. Blue light is good for gums

A quality whitening routine will be powerful enough to brighten your teeth shades whiter but is still comfortable on gums. Research has shown that blue light technology is both safe and gentle for gum tissue and tooth enamel. It kills bacteria, decreases tooth sensitivity, and both treats and prevents gum disease.

3. Causes no increased sensitivity

Studies on the clinical effect of LED light have demonstrated that blue light did not increase tooth sensitivity in its subjects. 

4. Has a short treatment duration

At-home blue light teeth whitening treatments typically last between 2 to 20 minutes. This limited exposure time reduces the potential for adverse effects.

5. Uses non-ionizing radiation

Blue light is a form of non-ionizing radiation, which means it lacks sufficient energy to damage DNA. Unlike ultraviolet (UV) light - which is ionizing radiation and can pose health risks with prolonged exposure - blue light is generally considered safe for brief periods of use during teeth whitening procedures.

How to use blue light teeth whitening devices

As you begin using blue light technology, it is helpful to seek out the brands known to create trusted, clinically-tested teeth whitening products. Here at GO SMILE, we create gentle blue light technology and teeth whitening gel. 

1. Choose a whitening agent

Whether using a whitening toothpaste, gel, pen or ampoule, choose a method that works for your convenience. 

Apply a whitening toothpaste directly or whitening gel to the device to whiten as you brush. Or, apply the pen or ampoules directly to your teeth before using the device.

2. Use your blue light device

A blue light device will accelerate your teeth whitening results with no sensitivity. Our BLU hands-free device comes with two trays; one for brushing and one for whitening. 

Use the brushing tray with our foaming and whitening toothpaste for 2 minutes for an all-around clean. Or use the device for up to 20 minutes for a whitening boost when paired with a whitening gel, ampoule or pen. 

To learn more, follow our guide on teeth whitening at home

How to use the blue light device instructions

How to use blue light safely

While you can feel comfortable about blue lightwave technology, it is still important to follow all product instructions. 

  1. Do not use a whitening regimen or blue light regimen for longer than instructed. 
  2. You should also be in good oral health before beginning a whitening routine. 
  3. If you think you need to address any dental concerns before whitening with LED light, talk to your dentist.

What are the other types of teeth whitening?

UV teeth whitening

Ultraviolet teeth whitening works by utilizing a combination of hydrogen peroxide gel and UV light and comes with short and long-term risk factors that are important to consider. Researchers have found out that the use of UV light for teeth whitening can put you at risk of high levels of radiation, which leads to burns or bleeding of the gums, tooth sensitivity and even oral cancer.

In-office teeth bleaching

A bleaching product - usually with a higher percentage of peroxide is painted onto your teeth, and then a light or laser is shone on them to activate the whitening for around an hour. No matter what treatment you use, there's a chance your gums will be sensitive to the chemicals used in teeth whitening, particularly if you already have sensitive teeth. 

Shop our blue light devices from GO SMILE

Now that you know how gentle blue light whitening is on your teeth and gums, you can try it as a part of your brushing and flossing routine. You can even supplement your whitening regimen as you work or travel. 

Today’s blue light whitening devices make it easier than ever to get the whitening results you deserve without discomfort or hassle. No matter which combination of tools you choose, blue light whitening will help you to clean your teeth, kill bacteria and whiten your smile faster and easier than ever. 


A Helpful Guide: How to Get Healthy Gums

A Comprehensive Guide: How Does Blue Light Teeth Whitening Work?

Does LED Teeth Whitening Work?