top of page

Charcoal Toothpaste: Trendy Whitening Solution or Oral Health Risk?

In recent years, charcoal toothpaste has emerged as a popular trend, promising whiter teeth and a brighter smile. Marketed for its natural ingredients and detoxifying properties, charcoal toothpaste has garnered significant

attention. But does it live up to the hype? In this blog post, we'll delve into the benefits and risks of charcoal toothpaste, backed by current peer-reviewed research, to help you make an informed decision about incorporating it into your oral hygiene routine.

The Promised Benefits of Charcoal Toothpaste

Charcoal toothpaste is touted for several key benefits:

1. Whitening Effect

Activated charcoal is highly porous and is believed to bind to surface stains on teeth, potentially leading to a whitening effect. This abrasive quality can help remove external stains from coffee, tea, and smoking.

2. Detoxification

Proponents of charcoal toothpaste claim it can detoxify the mouth by absorbing toxins and impurities. This concept is based on the broader use of activated charcoal in medical settings for poison treatment.

3. Natural Ingredients

Many charcoal toothpaste products highlight their natural formulation, free from synthetic additives, which appeals to consumers seeking eco-friendly and chemical-free options.

What Does the Research Say?

Despite the marketing claims, scientific research presents a more nuanced view of charcoal toothpaste:

1. Abrasiveness and Enamel Erosion

A study published in the Journal of the American Dental Association (JADA) raised concerns about the abrasiveness of charcoal toothpaste. The study found that the abrasive nature of activated charcoal could potentially wear down tooth enamel over time, leading to increased sensitivity and vulnerability to decay .

2. Whitening Efficacy

Research published in the Journal of Applied Oral Science evaluated the whitening effects of charcoal toothpaste compared to other whitening agents. The results indicated that while charcoal toothpaste might offer some stain removal, it is not more effective than standard non-charcoal whitening toothpaste and lacks the bleaching agents found in peroxide-based products, which are proven to whiten teeth effectively .

3. Safety and Long-Term Effects

The British Dental Journal published a review highlighting the lack of long-term safety data on charcoal toothpaste. The review emphasized that many charcoal toothpastes do not contain fluoride, an essential ingredient for preventing tooth decay, and warned that regular use might compromise dental health due to the abrasive nature of charcoal .

Risks and Considerations

1. Enamel Damage

Excessive abrasiveness is a significant concern. Enamel, once worn away, cannot regenerate, leading to permanent damage. If enamel erosion occurs, it can result in increased tooth sensitivity and a higher risk of cavities.

2. Lack of Fluoride

Many charcoal toothpastes are fluoride-free. Fluoride is critical in strengthening enamel and preventing cavities. The absence of fluoride in charcoal toothpaste could undermine oral health, especially in individuals prone to cavities.

3. Potential for Misuse

Improper use, such as brushing too hard or too frequently with charcoal toothpaste, can exacerbate its abrasive effects, further increasing the risk of enamel erosion and gum irritation.

Recommendations for Safe Use

If you choose to use charcoal toothpaste, consider the following guidelines:

1. Limit Use

Use charcoal toothpaste sparingly, perhaps once or twice a week, rather than daily, to minimize the risk of enamel damage.

2. Combine with Fluoride Toothpaste

Alternate between charcoal toothpaste and fluoride toothpaste to ensure your teeth receive the decay-preventing benefits of fluoride.

3. Gentle Brushing Technique

Use a soft-bristled toothbrush and gentle brushing technique to reduce the abrasive impact on your enamel and gums.

4. Consult Your Dentist

Before incorporating charcoal toothpaste into your routine, consult your dentist. They can provide personalized advice based on your oral health needs and monitor any potential effects of the toothpaste on your teeth and gums.


Charcoal toothpaste, while trendy and appealing for its natural ingredients and potential whitening effects, carries significant risks that should not be overlooked. The current body of peer-reviewed research highlights concerns about its abrasiveness, lack of fluoride, and potential for enamel damage. For those interested in trying charcoal toothpaste, moderation and proper usage are key. Always seek professional dental advice to ensure your oral hygiene routine is both effective and safe.


  1. Brooks, J. K., Bashirelahi, N., & Reynolds, M. A. (2017). Charcoal and charcoal-based dentifrices: A literature review. Journal of the American Dental Association, 148(9), 661-670.

  2. Viana, I. E. L., Ribeiro, M., & Machado, A. C. (2019). Whitening effect and enamel microhardness after treatment with different whitening toothpastes. Journal of Applied Oral Science, 27.

  3. Watt, B. E., Proudfoot, A. T., & Vale, J. A. (2004). Hydrogen peroxide poisoning. Toxicological Reviews, 23(1), 51-57.

0 views0 comments


bottom of page