Charcoal Toothpaste: Miracle or Marketing Gimmick?
If you’ve spent any time online lately, you’ve likely come across ads featuring smiles darkened by charcoal toothpaste, promising everything from whiter teeth to a detoxified mouth. Charcoal-infused products have surged in popularity, appearing in everything from nutritional supplements to skincare. But does charcoal toothpaste actually live up to the hype? Keep reading to find out.
What is Charcoal Toothpaste?
Activated charcoal is a superfine powder produced by heating carbon-rich materials, such as wood or coconut shells, at extremely high temperatures. This process results in a highly porous material that easily binds to various substances. Essentially, extreme heat “activates” charcoal by creating tiny pockets that attract and trap particles. This property makes activated charcoal effective in water filtration and even in emergency medicine where it is used to treat acute poisoning or overdose cases.
Is Charcoal Toothpaste Safe to Use?
A 2017 review published in the Journal of the American Dental Association found insufficient evidence to support the safety and effectiveness of charcoal-based toothpastes. The review also advised dentists to educate patients considering these products. Here are some important factors to consider before using charcoal toothpaste:
Abrasiveness – Despite being finely ground, charcoal remains coarse enough to wear down enamel when used frequently or with excessive pressure.
Effects on dental work – There is limited research on the long-term effects charcoal toothpaste could have on existing fillings or crowns.
Lack of fluoride – Many charcoal toothpastes do not contain fluoride, a key ingredient in strengthening enamel and preventing cavities. Using charcoal toothpaste as a substitute for fluoridated toothpaste could increase your risk of tooth decay.
Can Charcoal Toothpaste Whiten Teeth?
Possibly, but with risks.
Charcoal’s abrasiveness may help remove surface stains, temporarily making teeth appear whiter. However:
Overuse can wear away enamel, exposing the naturally yellowish dentin underneath and making teeth look darker over time.
Charcoal particles may settle into cracks, crevices, or around dental restorations, potentially causing gray or black discoloration.
A 2019 study comparing various whitening toothpastes found that charcoal-based formulas provided only minimal whitening effects.
Does Charcoal Toothpaste Detoxify the Mouth?
Although activated charcoal binds to certain particles, its ability to "detoxify" the mouth is largely unproven. While it may help remove plaque and bacteria, so do regular fluoride toothpastes. The 2017 review mentioned earlier found no scientific evidence supporting claims that charcoal provides any additional detoxification benefits.
The Bottom Line: Should You Use Charcoal Toothpaste?
If you’re thinking about trying charcoal toothpaste, follow these guidelines to protect your oral health:
Charcoal toothpaste is not a replacement for your everyday fluoridated toothpaste. It should only be used once every other week to reduce surface staining. This is especially effective after a professional cleaning or whitening appointment.
Always use a soft-bristled toothbrush and light pressure when brushing.
Stop using it immediately if you have any sensitivity.
Still unsure if charcoal toothpaste is right for you? Ask me at your next appointment—I’d be happy to help you make the best choice for your smile!