Microplastics in Toothpaste
If you’ve been paying attention to health and environmental news lately, you’ve likely heard about microplastics—tiny plastic particles that can end up in our food, water, and even the air we breathe. But what about your daily oral care routine? Could your toothpaste or mouthwash contain microplastics, and should you be worried?
What Are Microplastics?
Microplastics are extremely small plastic particles, typically less than 5 millimeters in size. In the past, they were intentionally added to some personal care products—especially as exfoliating “microbeads” in scrubs and certain toothpastes designed for whitening or polishing.
Are Microplastics Still Used in Toothpaste in Canada?
The good news is that microbeads have largely been phased out in Canada following regulatory action by Environment and Climate Change Canada. As of 2018, the manufacture and sale of toiletries containing plastic microbeads has been banned.
However, that doesn’t mean all concerns are gone. Some oral care products may still contain synthetic polymers (like polyethylene or nylon), which are not always classified the same way as microbeads but can still raise questions for environmentally conscious consumers.
Are They Harmful to Your Health?
Current research is still evolving. While there’s no definitive evidence that trace amounts of microplastics in oral care products directly harm your teeth or gums, scientists are actively studying their potential long-term effects on human health.
From a dental perspective, the bigger concern is not microplastics themselves, but whether a product is:
- Effective at removing plaque
- Safe for enamel
- Approved by dental professionals
Some “natural” or alternative toothpastes marketed as microplastic-free may lack fluoride, which remains one of the most important ingredients for preventing cavities.
Should You Switch to “Natural” Toothpaste?
Not necessarily. While many natural toothpastes avoid synthetic ingredients, they’re not always better for your oral health. The key is balance.
Look for products that:
- Contain fluoride (unless otherwise advised by your dentist)
- Have approval from recognized dental organizations
- Avoid overly abrasive ingredients that can wear down enamel
If you’re unsure, your dentist can help you choose a product that aligns with both your health goals and personal preferences.
Practical Takeaway
For most patients, microplastics in toothpaste are no longer a significant concern in Canada due to regulatory changes. Instead of focusing solely on ingredient trends, it’s more important to choose a toothpaste that protects your teeth and supports long-term oral health.
If you have questions about your oral care products or want personalized recommendations, don’t hesitate to ask during your next visit. Making informed choices is always the best approach—both for your smile and your overall well-being.

