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Is Your Toothpaste Full of Heavy Metals? What an Instagram Post Gets Right and Wrong
An Instagram post says popular toothpastes have been tested and sued over heavy metals, and points to fluoride-free brands instead. Independent testing does exist. But fluoride-free is not the fix.
Original commentary from the Cancer Explained editorial team.
Please note: this page is educational only — it is not medical advice, and it does not speculate about anyone’s health beyond reliable public reporting. For questions about your own health, talk with your healthcare team.
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An Instagram post from @scouthealthnetwork says popular toothpaste brands have been lab tested and sued over toxic heavy metals. The account promotes a wellness app called Scout. The post lists five fluoride-free toothpastes to switch to. Then it asks readers to comment to get a link to the app, where they can check their own products and shop for others.
What's real
The "lab tested" part checks out. Lead Safe Mama is a consumer safety website. Since March 2024, it has run a testing project funded by its readers. It sends toothpaste and other personal care products to independent labs. The labs test for lead, cadmium, mercury and arsenic.
Its May 2026 update covers more than 100 toothpastes and tooth powders. The results are mixed. Many products had lead. Some also had arsenic, mercury or cadmium. Only eight had none of the four metals found.
The "sued" part checks out too. Hello Products makes a popular line of "natural" toothpaste. In July 2025, it was sued in a class action after Lead Safe Mama's testing reported lead and mercury in two of its kids' toothpastes. One of them was sold as fluoride-free. These are claims in a lawsuit. They have not been proven in court.
That fluoride-free detail matters for what the post gets wrong.
What the evidence says
The post treats this as a fluoride problem with a fluoride-free fix. It isn't. Fluoride and heavy metals are two separate issues.
Lead Safe Mama's testing points to certain ingredients as likely sources of metals. These include bentonite clay, hydroxyapatite, calcium carbonate, hydrated silica and titanium dioxide. Fluoride is not on that list. So a toothpaste can have fluoride and no metals found. Or it can be fluoride-free and still have lead. That is what the Hello lawsuit describes.
The National Cancer Institute has looked at decades of research on fluoride in drinking water. It found no credible evidence that fluoride raises cancer risk. The American Dental Association also says fluoride at recommended levels is safe. So a "fluoride-free" label does not protect you from metals. And it does not remove a cancer risk that fluoride has not been shown to have.
The five brands in the post are paired with a pitch for the account's app. That doesn't make the test data fake. But any list of "clean" products in a sales post should be checked, not taken on faith.
We checked two of the brands. Spry Kids Tooth Gel (original flavor) is on Lead Safe Mama's list of eight toothpastes with none of the four metals found. So that pick holds up. Weleda is mixed. Its adult salt toothpaste had no metals found. But its fluoride-free children's tooth gel tested positive for lead. A brand and a product are not the same thing in this testing.
What to do with this
You can check your toothpaste against real test data. You don't have to trust an Instagram post or a "clean" label. Lead Safe Mama posts its lab results and a list of products where no metals were found. It's free. You can look up the exact product you use.
Children can swallow toothpaste while brushing. The CDC advises using a rice-grain smear for children under 3 and a pea-sized amount for ages 3 to 6. Teach children to spit, not swallow. None of this is a reason to stop brushing. Fluoride toothpaste helps prevent cavities.
When to talk to your care team
Using a toothpaste that tested positive for a metal is not a reason to panic. If you are worried about lead exposure, especially for a young child or during pregnancy, ask your doctor or your child's doctor. A simple blood test can check lead levels. Your dentist can help you pick a toothpaste that fits your needs. If you are getting cancer treatment, ask your care team before changing mouth care products, since some treatments affect the mouth.
Sources
- Lead Safe Mama, "We Tested Over 100 Toothpaste and Tooth Powder Products for Lead, Cadmium, Mercury & Arsenic: 2026 Update": tamararubin.com
- Lead Safe Mama, Weleda children's tooth gel test results: tamararubin.com
- ClassAction.org, "Hello Toothpaste Lawsuit Filed Over Alleged Lead, Mercury Contamination": classaction.org
- National Cancer Institute, "Fluoridated Water": cancer.gov
- American Dental Association, "ADA Defends Safety and Efficacy of Fluoride Supplements Amid FDA Review" (2025): adanews.ada.org
- CDC, "About Fluoride": cdc.gov
- National Cancer Institute, "Substances Associated With Cancer": cancer.gov
How this article was prepared
An AI-assisted editorial system helped prepare this page. It used Lead Safe Mama's published lab data, news reports on the Hello Products lawsuit, and NCI, CDC and American Dental Association information on fluoride. No named medical reviewer has reviewed it unless one is listed.
Cancer Explained is published by the National Cancer Information Foundation. It is not medical advice and does not suggest a test or treatment.
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