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Best Non-Toxic Dental Floss in 2025
Updated:
Aug 28, 2025
Written by Camille May
Cofounder & Product Curator
+ 1 more
Medically reviewed by Olushola Awoyemi
PhD Environmental Toxicology
As an Amazon Associate, we earn from qualifying purchases. Our use of affiliate links does not influence how we rate products. Learn more about our affiliate policy here.
What we look for:
- PFAS-free with natural coatings like beeswax or plant-based waxes
- Fluoride-free formulas with safer alternatives like hydroxyapatite or baking soda
- Food-grade ingredients with no artificial dyes, flavors, or sweeteners
- No sulfates, parabens, PEGs, or triclosan
- Full transparency with every ingredient clearly disclosed
Find Non-Toxic Dental Floss
No items found.
Biodegradable Dental Floss Picks - SmartLifeCo
Welpr Rating
4.95
/5
Certifications
Third-party certifications are key indicators of a product's safety, ethics, and environmental impact. Click the icon to verify the certification.
Highlights
Highlights aren't always verifiable, so you're trusting the brand when they say "lead free", etc. If the highlight icon is "clickable", it means we've verified the highlight.
User Satisfaction
User satisfaction is calculated using online reviews and a Bayesian average across all personal care and cosmetic products on Welpr.
Est. Price
$15.99
Video Review
Product Details
- Made with compostable straw wheat handles for an eco-friendly choice.
- Features thin, waxed thread ideal for tight gaps and sensitive gums.
- Certified and tested by dentists for durability and effectiveness.
- Infused with natural mint flavor for a fresh breath experience.
- Must be industrially composted for proper decomposition.
Pros & Cons
Pros
- Durable floss that doesn't break or fray.
- Eco-friendly and biodegradable, reducing plastic waste.
- Minty flavor adds a refreshing touch to oral care.
- Compact and portable, perfect for travel use.
- Sturdy design easy on tight spaces between teeth.
Cons
- Some users find the handle could be bigger for easier handling.
- String may require using more than one pick for tighter teeth.
Ingredients
Ingredients can vary by product variation and may change at any time by the manufacturer. For the most complete and up-to-date list of ingredients, refer to the product packaging.
To analyze individual ingredients, use INCIDecoder.
Ingredients: USDA Biobased Straw Wheat (Handle), Nylon-4 (Thread)
Peppermint Dental Floss - Radius
Welpr Rating
4.85
/5
Certifications
Third-party certifications are key indicators of a product's safety, ethics, and environmental impact. Click the icon to verify the certification.
Highlights
Highlights aren't always verifiable, so you're trusting the brand when they say "lead free", etc. If the highlight icon is "clickable", it means we've verified the highlight.
User Satisfaction
User satisfaction is calculated using online reviews and a Bayesian average across all personal care and cosmetic products on Welpr.
Est. Price
$11.49
Product Details
- Packaged in 100% plastic-free packaging for a sustainable choice.
- Free from harsh chemicals such as PFAs, parabens, and artificial additives.
- Includes erythritol to effectively fight cavities.
- Soft and smooth, coated in carnauba wax for comfortable use.
- Made with natural ingredients like virgin coconut oil and peppermint oil.
Pros & Cons
Pros
- Soft and comfortable for teeth.
- Strong and resistant to breaking.
- Eco-friendly with non-plastic packaging.
- No PFAS, suitable for health-conscious users.
- Pleasant peppermint flavor.
- Expands to clean effectively between teeth.
Cons
- Some users may find it fragile and prone to shredding.
- The scent might be too strong for some.
Ingredients
Ingredients can vary by product variation and may change at any time by the manufacturer. For the most complete and up-to-date list of ingredients, refer to the product packaging.
To analyze individual ingredients, use INCIDecoder.
Ingredients: Virgin Coconut Oil, Carnauba Wax, Peppermint Oil, Tea Tree Oil, Erythritol
Cinna Mint Woven Dental Floss - Boka
Welpr Rating
4.85
/5
Certifications
Third-party certifications are key indicators of a product's safety, ethics, and environmental impact. Click the icon to verify the certification.
Highlights
Highlights aren't always verifiable, so you're trusting the brand when they say "lead free", etc. If the highlight icon is "clickable", it means we've verified the highlight.
User Satisfaction
User satisfaction is calculated using online reviews and a Bayesian average across all personal care and cosmetic products on Welpr.
Est. Price
$6.99
Product Details
- Effectively removes plaque in tight spaces for a thorough clean.
- Strong and gentle on gums without fraying or shredding.
- Made from vegan, cruelty-free, PFAS-free, and gluten-free ingredients.
- Fresh mint aroma leaves your mouth feeling clean and refreshed.
- Dentist reviewed for advanced oral care and effectiveness.
Pros & Cons
Pros
- Contains no harmful chemicals, ensuring a nontoxic flossing experience.
- Strong and durable, reducing the likelihood of breaking during use.
- Minty flavor enhances the pleasantness of the flossing routine.
- Gently cleans teeth and hugs gums for a thorough clean feeling.
Cons
- Some users with tight teeth might find the floss a little too thick, potentially causing it to get stuck.
- A few users noted that it may shred or unravel during use, especially in tighter spaces.
Ingredients
Ingredients can vary by product variation and may change at any time by the manufacturer. For the most complete and up-to-date list of ingredients, refer to the product packaging.
To analyze individual ingredients, use INCIDecoder.
Ingredients: Vegetable Wax, Nano-Hydroxyapatite, Mint Aroma
Tea Tree Dental Floss - Desert Essence
Welpr Rating
4.85
/5
Certifications
Third-party certifications are key indicators of a product's safety, ethics, and environmental impact. Click the icon to verify the certification.
Highlights
Highlights aren't always verifiable, so you're trusting the brand when they say "lead free", etc. If the highlight icon is "clickable", it means we've verified the highlight.
User Satisfaction
User satisfaction is calculated using online reviews and a Bayesian average across all personal care and cosmetic products on Welpr.
Est. Price
$22.99
Product Details
- Effortlessly glides between teeth and gums without shredding for a hassle-free flossing experience.
- Infused with Australian tea tree oil and mint to keep your breath fresh all day long.
- Vegetarian, gluten-free, and certified cruelty-free to align with ethical lifestyle choices.
- Made with ethically sourced materials and contains no harmful additives for pure oral hygiene.
- Comes in a pack suitable for the whole family to maintain consistent dental care.
Pros & Cons
Pros
- Non-toxic and free from harmful chemicals like PFAS and Teflon.
- Effectively cleans teeth with a pleasant subtle flavor.
- Designed to fit comfortably between tight spaces.
- Durable and doesn’t break easily, providing a reliable flossing experience.
- An excellent choice for those with a mint allergy or who prefer alternative flavors.
Cons
- Some people might find the subtle flavor, like tea tree oil, requires an adjustment.
- There were occasional issues with receiving fewer packs than ordered.
Ingredients
Ingredients can vary by product variation and may change at any time by the manufacturer. For the most complete and up-to-date list of ingredients, refer to the product packaging.
To analyze individual ingredients, use INCIDecoder.
Ingredients: Nylon, Cera Alba (Beeswax), Melaleuca Alternifolia (Tea Tree) Leaf Oil, Mentha Piperita (Peppermint) Oil, Mentha Viridis (Spearmint) Leaf Oil
Naturally Waxed Antiplaque Dental Floss - Tom's of Maine
Welpr Rating
4.75
/5
Certifications
Third-party certifications are key indicators of a product's safety, ethics, and environmental impact. Click the icon to verify the certification.
Highlights
Highlights aren't always verifiable, so you're trusting the brand when they say "lead free", etc. If the highlight icon is "clickable", it means we've verified the highlight.
User Satisfaction
User satisfaction is calculated using online reviews and a Bayesian average across all personal care and cosmetic products on Welpr.
Est. Price
$26.47
Product Details
- Contains naturally waxed nylon that prevents snapping or fraying.
- Removes food particles and plaque efficiently and thoroughly.
- Contains no artificial preservatives, colors, or flavors.
- Not tested on animals, ensuring ethical product standards.
Pros & Cons
Pros
- Strong and durable, great for getting into tight spaces without breaking.
- Natural and safer option, free from harmful coatings and chemicals.
- Mild, pleasant flavor that feels natural and refreshing.
Cons
- Some users find it too thick, making it harder to use on tightly spaced teeth.
- A few users experience shredding, especially in narrow tooth gaps.
Ingredients
Ingredients can vary by product variation and may change at any time by the manufacturer. For the most complete and up-to-date list of ingredients, refer to the product packaging.
To analyze individual ingredients, use INCIDecoder.
Ingredients: Nylon, Beeswax Carnauba Wax, Natural Flavor (from Spearmint Oil), Jojoba Wax, Acacia Myrrh Propolis
Mint Dental Tooth Lace Floss With Refillable & Reusable Glass Holder - Bambo Earth
Welpr Rating
4.75
/5
Certifications
Third-party certifications are key indicators of a product's safety, ethics, and environmental impact. Click the icon to verify the certification.
Highlights
Highlights aren't always verifiable, so you're trusting the brand when they say "lead free", etc. If the highlight icon is "clickable", it means we've verified the highlight.
User Satisfaction
User satisfaction is calculated using online reviews and a Bayesian average across all personal care and cosmetic products on Welpr.
Est. Price
$6.97
Product Details
- Glides easily between teeth to remove residue, even in tight spaces, while providing a fresh minty feel.
- Waxed with natural candelilla wax for a gentle yet effective experience, suitable for sensitive gums.
- Biodegradable and compostable, ensuring minimal environmental impact.
- Refillable glass holder with zero-waste, plastic-free, recyclable packaging.
- Made with organic, chemical-free ingredients for a healthier choice.
Pros & Cons
Pros
- PFAS-free, offering a non-toxic alternative for flossing.
- Biodegradable and environmentally friendly packaging.
- Slight mint flavor leaves a refreshing feel.
- Cute and compact glass jar design.
Cons
- Some users with tight teeth may find it prone to breaking during use.
- Can feel rough or thick, potentially irritating sensitive gums.
Ingredients
Ingredients can vary by product variation and may change at any time by the manufacturer. For the most complete and up-to-date list of ingredients, refer to the product packaging.
To analyze individual ingredients, use INCIDecoder.
Ingredients: Organic Silk, Candelilla Wax, Organic Peppermint Oil
Our Product Rating System
First, Camille (co-creator of Welpr) hand picks cleaner product options from a variety of sources.
Next, we collect information about each product's safety, consumer satisfaction, and eco-ethical standing.
Finally, we run all this information through an algorithm that calculates the Welpr Rating.
Welpr Rating:
5.0/5
Part 1: Product safety
We evaluate safety information from 3rd party organizations (e.g. EWG, Made Safe, etc.). Instead of relying solely on any one of these companies for safety information, we assess all of them.
Part 2: Consumer satisfaction
We scour the web for consumer ratings and reviews to verify products are not only cleaner options, but also effective. Products can either be Above Average, Average, or Below average for their respective category (e.g. cleaning products).
Part 3: Ethics & Environment
When you buy a product, you’re supporting that company with your dollars. We believe it’s important to support ethical companies, so we pool together certifications that verify a company's ethics and environmental impact.
Common Harmful Chemicals in Dental Floss
Chemical Name
Why it’s harmful
Polytetrafluoroethylene
Polytetrafluoroethylene (PTFE), commonly found in cosmetics, particularly anti-aging products, is favored for its smooth finish. PTFE is trademarked as Teflon® and is also used in non-stick cookware. However, concerns have arisen due to its fluorinated nature, linking it and similar compounds to delayed menstruation, delayed breast development, and cancer. These ingredients can be found in various cosmetic products like foundation, pressed powder, bronzer, blush, eye shadow, mascara, shave gel, lip balm, and anti-aging lotion.
Perfluorooctanoic Acid (PFOA)
Perfluorooctanoic acid (PFOA) is primarily used to create salts that aid in the processing of producing fluoropolymers and fluoroelastomers. It also acts as a surfactant in firefighting foams, an intermediate in creating fluoroacrylic esters, and a crucial aspect in manufacturing Teflon and similar chemicals. However, exposure to PFOA can lead to adverse health effects, including alterations in thyroid hormone levels, lower fertility, an increased risk of cerebrovascular disease, higher cholesterol and triglyceride levels, a possible link to ADHD, smaller abdominal circumference and birth length in infants, an increased risk of common cold and gastroenteritis in children, and potentially prostate cancer mortality. Studies on animals have indicated possible liver and brain dysfunction, carcinogenicity, and reproductive and developmental toxicity. Ecotoxicity studies found alterations in genes linked to lipid metabolism, hormone action, immune responses, and mitochondrial functions in rare minnows exposed to PFOA.
Perfluorooctane Sulfonic Acid (PFOS)
Perfluoroalkyls are synthetic chemicals known for their ability to resist oil, grease, and water, primarily used in surface protection products and fire-fighting foams. The two most abundant perfluoroalkyls are perflurooctanoic acid (PFOA) and perfluorooctane sulfonic acid (PFOS). Studies have observed liver enlargement and elevated cholesterol in animals given high doses, and the presence of PFOS in various populations has raised environmental and health concerns, leading to the phase-out of some PFOS-based chemicals. Tests have shown a range of health effects in animals, including eye irritation, liver changes, teratogenic effects, and more, with no evidence of mutagenicity. However, no substantial link has been found between PFAS concentrations and increased cardiometabolic risk measures in human studies, and there are no known health effects from exposure when used as intended.
Phthalate
Phthalates, linked to endocrine disruption, reproductive toxicity, and cancer, are banned in the European Union but remain prevalent in U.S. cosmetics. They are widely used in personal care products, such as nail polish, fragrances, and eyelash glue and other products. A significant loophole allows phthalates to be added to fragrances without disclosure. Health concerns include endocrine disruption, developmental and reproductive toxicity, and potential carcinogenicity.
Sources:
Campaign for Safe Cosmetics: Phthalates, Product Profile: Hand Sanitizer, Phthalates in Cosmetics, Phthalates in cosmetic and personal care products: concentrations and possible dermal exposure, A Survey of Phthalates and Parabens in Personal Care Products from the United States and Its Implications for Human Exposure, Phthalates Factsheet, BPA and Phthalates: Chemicals found in our homes
Bisphenol A
Bisphenol A (BPA) is a solid used in manufacturing epoxy resins and polycarbonates for food packaging. Human exposure to BPA can cause allergic dermatitis and has been associated with negative effects on fertility, such as declined semen quality, increased sperm DNA damage, and risk of miscarriage. BPA, an endocrine disruptor, also affects oocyte quality during in vitro fertilization. Animal studies indicate that BPA caused eye damage in rabbits, accelerated tumorigenesis in mice, disrupted sex behaviors in rats, and induced obesity in rodents. Ecotoxicity studies show BPA's disruptive effects on sex characteristics in fish and gene expression in Arabidopsis thaliana, suggesting broad environmental implications.
Sources:
Levels of parabens and bisphenols in personal care products and urinary concentrations in Indian young adult women: Implications for human exposure and health risk assessment, Estimation of intake and uptake of bisphenols and triclosan from personal care products by dermal contact, Exposure determinants of phthalates, parabens, bisphenol A and triclosan in Swedish mothers and their children, BPA and Phthalates: Chemicals found in our homes ,
Authors
Camille May, Product Curator
Olushola M. Awoyemi, Medical Reviewer
