Why Won't My Teeth Whiten?

Written by Dr. Brian Harris

December 28, 2023

Struggling with the question, "Why won't my teeth whiten?" The answer often lies in the type of stains, your lifestyle habits, and even genetics.

This article dives into the reasons why teeth whitening can be challenging, addressing factors like diet, oral hygiene, and the natural color of your teeth. We'll also explore effective whitening methods, including advanced at-home treatments.

By understanding these key aspects, you'll gain insights into enhancing your dental aesthetics in a way that suits your individual needs.

Let's uncover the secrets to effective teeth whitening and how you can achieve better results.   

What this article covers:

Six Reasons for Stubborn Tooth Discoloration

When it comes to getting the most out of any teeth whitening treatment, understanding the root causes of tooth discoloration is crucial. At SNOW, we recognize that various factors can contribute to this common dental issue. Let's explore some of the primary reasons for stubborn tooth discoloration, each under its own heading, to give you a clearer picture of what might be hindering your teeth whitening efforts.

teeth won't whiten

Foods And Beverages

One of the most common causes of tooth discoloration is the consumption of certain foods and beverages. Drinks like coffee, tea, red wine, and cola are notorious for staining teeth. Similarly, foods such as berries, soy sauce, and curry can also leave their mark over time.

According to WebMD, these substances contain pigments that adhere to the enamel, the outermost layer of your teeth, causing noticeable staining.

Tobacco Use

Tobacco products, including cigarettes, cigars, and chewing tobacco, are significant contributors to tooth discoloration. These products contain tar and nicotine, which can cause stubborn, deeper stains on the enamel.

The longer and more frequently you use tobacco, the more pronounced these stains can become.

Poor Oral Hygiene

Maintaining good oral hygiene is essential for preventing tooth discoloration. Inadequate brushing and flossing can lead to the buildup of plaque and tartar, which can cause the teeth to appear yellow or brown.

Regular dental check-ups and cleanings are crucial in keeping your teeth free from these discoloring deposits.

Age-Related Changes

While it's common to get yellow teeth from not brushing, age plays a role too. As we age, the outer layer of enamel on our teeth wears away, revealing the naturally yellow dentin underneath. This process is natural and can make the teeth appear less white over time.

While this type of discoloration is more challenging to address, at-home teeth whitening treatments can still be effective.

Medications And Medical Treatments

Certain medications, such as tetracycline antibiotics, can cause tooth discoloration, especially when taken during childhood when teeth are still developing.

Additionally, treatments like chemotherapy and radiation, particularly to the head and neck, can also affect tooth color.


Just as we inherit our eye and hair color, we also inherit our tooth color. Some people's natural teeth are yellow or grayish, which can be more resistant to whitening treatments. Understanding your genetic predisposition can help set realistic expectations for teeth whitening results.

At SNOW, we're committed to helping you understand the reasons why your teeth won't whiten and offer solutions that cater to your specific needs. Our range of tooth whitening products is designed to address various types of discoloration, ensuring whiter teeth through the removal of extrinsic stains.

Factors That Affect the Whiteness of Your Teeth

At SNOW, we understand that achieving the desired whiteness for your teeth involves more than just using a high-quality whitening product. Various factors can influence the effectiveness of teeth whitening treatments.

Let's explore these factors, drawing insights from the American Dental Association (ADA), to help you better understand what affects the whiteness of your teeth and how to optimize your whitening results.

The Chemical Composition of Your Teeth

The ADA explains that the bleaching process in teeth whitening involves reactive oxygen molecules interacting with organic chromophores within the enamel and dentin. This means that the natural chemical composition of your teeth plays a crucial role in how they respond to whitening treatments.

Factors like enamel thickness, natural tooth color, and the presence of restorations can all impact the outcome.

why are my teeth not whitening

Environmental Influences

Environmental factors such as pH, temperature, and light can also affect the whitening process. For instance, a more acidic environment in the mouth can alter the effectiveness of the whitening agent. Similarly, external temperatures and light conditions during the whitening process can influence the results.

Lifestyle Habits

Your daily habits, including diet and tobacco use, significantly impact the color of your teeth. Consuming staining substances like coffee, tea, red wine, and tobacco can lead to surface stains. These lifestyle factors can counteract or diminish the effects of teeth whitening treatments.

Age-Related Changes

As we age, our teeth naturally change color. The enamel thins, exposing the dentin, which is darker. This natural aging process can affect the baseline color of your teeth and, consequently, the results of whitening treatments.

Oral Hygiene Practices

Maintaining good oral hygiene is crucial for effective teeth whitening. Regular brushing and flossing help remove surface stains and prevent plaque buildup, which can cause discoloration. A well-maintained oral environment supports the effectiveness of whitening treatments. 

Understanding these factors, as outlined by the ADA, helps us at SNOW to develop products that cater to a wide range of whitening needs. Our advanced teeth whitening solutions are designed to address these various factors, ensuring effective and safe whitening for everyone.

What Are Your Whitening Options?

Exploring your teeth whitening options is key to achieving that bright smile you desire. At SNOW, we offer a range of products tailored to meet different whitening needs.

Each product is designed with your comfort and convenience in mind, ensuring effective results with minimal sensitivity. Let's take a closer look at some of our top whitening solutions.

why don't my teeth whiten

Magic Teeth Whitening Strips

Our Magic Teeth Whitening Strips offer a quick and easy way to whiten your teeth. These whitening strips are designed to be comfortable on the tooth surface and easy to use, providing noticeable results in just a few days.

They're perfect for those looking for a convenient, on-the-go whitening solution.

SNOW Teeth Whitening Kit (Original)

The Original SNOW Teeth Whitening Kit is our classic, tried-and-true whitening system. It's highly rated by our customers for its effectiveness in removing stains and brightening teeth. This kit includes everything you need for a comprehensive whitening experience at home.

Pair it with our teeth whitening toothpaste for snowy white results!

Wireless Teeth Whitening Kit

For those seeking the ultimate in convenience and advanced technology, our Wireless Teeth Whitening Kit is the perfect choice. This hands-free, wireless system allows you to whiten your teeth effortlessly with state-of-the-art technology that ensures fast and effective results.

Advanced Wireless Teeth Whitening Kit (Diamond)

The Diamond Advanced Wireless Teeth Whitening Kit represents the pinnacle of our whitening technology. It offers a premium whitening experience with advanced features for those who want the best in teeth whitening technology.

why aren't my teeth whitening

LED Teeth Whitening Electric Toothbrush

Our innovative LED Teeth Whitening Electric Toothbrush combines daily oral care with whitening power. The LED light helps to enhance the whitening effect while you brush, making it a dual-action product for both cleaning and whitening your teeth.

Whitening Water Flosser

Our Whitening Water Flosser is an excellent addition to your oral care routine, helping to maintain the brightness of your teeth while ensuring optimal gum health. It's an ideal product for those who want to combine oral hygiene with whitening maintenance.

At SNOW, we are committed to providing you with a variety of high-quality whitening options to suit your individual needs and preferences. Whether you're looking for a quick touch-up or a comprehensive whitening system, we have the perfect solution for you.

Explore our full range of products and find the one that's right for you.


Understanding the nuances behind tooth discoloration and the factors affecting tooth whiteness is essential in selecting the right whitening method. From lifestyle choices to genetic factors, various elements play a role in how your teeth respond to whitening.

At SNOW, we offer a range of teeth whitening products, each designed to cater to different needs and preferences.

Whether you're dealing with yellow canine teeth or looking for a convenient whitening solution, our products are tailored to help you achieve that brighter smile. 

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