Cocofloss is generally safe for everyday use. It’s made from polyester microfilaments coated in coconut oil, and it doesn’t contain some of the chemicals that raise concerns with other flosses. That said, there are a few things worth understanding about its materials, fragrances, and how it interacts with your gums.
What Cocofloss Is Made Of
Cocofloss uses textured polyester filaments rather than the nylon found in most traditional flosses. The filaments are coated in coconut oil, which has natural antimicrobial and anti-inflammatory properties. The textured surface is designed to grab more plaque and debris than smooth floss, which is part of what makes the product feel different in use.
Like most dental floss on the market, Cocofloss is plastic-based. Consumer Reports has noted that plastic flosses (whether nylon or polyester) can potentially contain chemicals like bisphenols and phthalates, which have been linked to hormone disruption and reproductive health concerns. Cocofloss markets itself as free from these substances, though independent third-party test results confirming this are not widely published.
PFAS: The Bigger Concern With Floss
One of the main safety questions around dental floss in general involves PFAS, a group of industrial chemicals sometimes called “forever chemicals” because they don’t break down easily in the body or the environment. Some flosses, particularly those with a slick, glide-style coating, have tested positive for PFAS. These chemicals have been associated with immune system effects, thyroid problems, and certain cancers at higher exposures.
Cocofloss does not use a Teflon-style coating. Its slipperiness comes from coconut oil rather than fluoropolymers, which is a meaningful distinction. The company states that its products are PFAS-free, though publicly available lab results from independent testing are limited.
Fragrances Aren’t All Natural
If you’re sensitive to fragrances or prone to oral allergies, this is worth knowing: Cocofloss aromas are made from a combination of synthetic and natural ingredients. The one exception is the mint variety, which is 100% naturally fragranced using spearmint oil, cornmint oil, anise camphor, and menthol.
The other flavors (like coconut, strawberry, and orange) contain synthetic fragrance components. For most people this is fine, but if you’ve had reactions to fragranced oral care products before, sticking with the mint version or patch-testing a small section of floss against your gum line first is a reasonable approach.
How It Affects Your Gums
The textured filaments in Cocofloss are softer than many traditional nylon flosses. The coconut oil coating adds lubrication, which reduces friction against gum tissue. For people with sensitive gums who find standard floss irritating or painful, this combination tends to cause less discomfort.
That said, the texture does grip more aggressively than smooth floss. If you press too hard or saw back and forth rather than using a gentle C-shaped motion around each tooth, any floss can cause gum irritation, and a textured one slightly more so. The product itself isn’t abrasive in a harmful way, but technique still matters. If you notice bleeding that persists beyond the first week or two of regular flossing, that’s typically a sign of underlying gum inflammation rather than a problem with the floss itself.
No ADA Seal of Acceptance
Cocofloss does not currently carry the American Dental Association’s Seal of Acceptance. This seal is voluntary, and many effective oral care products don’t have it, so its absence isn’t necessarily a red flag. But it does mean the product hasn’t gone through the ADA’s independent review process, which evaluates safety and effectiveness claims. Products that earn the seal have submitted clinical data showing they do what they claim without causing harm.
The lack of a seal doesn’t make Cocofloss unsafe. It just means you’re relying on the company’s own claims rather than an independent dental organization’s verification.
Environmental and Microplastic Considerations
Because Cocofloss is polyester-based, it is a single-use plastic product. Consumer Reports has flagged that plastic flosses contribute to environmental pollution, and there are broader questions in materials science about whether textured plastic fibers can shed microplastic particles during use. No published studies have specifically tested Cocofloss for microplastic shedding, so the risk is theoretical rather than documented. If avoiding plastic entirely is a priority for you, silk-based or plant-fiber flosses are alternatives, though they come with their own trade-offs in effectiveness and durability.
For most people, Cocofloss is a safe and effective option. Its coconut oil coating, PFAS-free formulation, and softer filaments address several of the common concerns with conventional floss. The main caveats are the synthetic fragrances in most flavors and the absence of independent certification verifying the company’s safety claims.