RADIUS Silk Floss
Pure silk floss in coconut oil and carnauba wax from a mainstream oral-care brand - plastic-free and, in independent testing, non-detect for PFAS. Just be sure to grab the silk line, not the vegan nylon one.
The verdict: Plastic-free
RADIUS's silk floss is pure silk coated in coconut oil and carnauba plant wax - a natural protein fiber that can't be a fluoropolymer, so it's plastic-free and PFAS-free by construction, and RADIUS flosses came back non-detect for organic fluorine in independent 2024 testing. The one catch is at the shelf: RADIUS also sells a separate vegan floss whose thread is nylon - still plastic, though not PFAS - so this rating applies specifically to the silk SKU. Check the pack names silk before you buy.
Verification: Community reported
What it's made of
| Part | Material | Skin contact |
|---|---|---|
| thread pure silk | Silk | Yes primary |
| coating coconut oil + carnauba wax | Candelilla Wax | No |
A waxed silk floss from a long-running oral-care brand that's easier to find in ordinary stores than the boutique silk options. The coconut-oil-and-carnauba coating gives it a smooth glide; it's a standard-diameter silk thread.
Pros
- Pure silk - plastic-free, and non-detect for PFAS in independent testing
- From a mainstream brand, so it's more widely stocked than boutique silk floss
- Coconut oil + carnauba wax coating for a smooth glide
Cons
- Sold alongside a vegan nylon floss under the same brand - easy to grab the plastic one by mistake
- Fine silk can fray on rough restorations
Notes
- RADIUS also sells a vegan floss whose thread is nylon (still plastic, though not PFAS) - this entry is specifically the silk line; confirm the pack says silk
Categories: Dental Floss
Sources
Every material claim above is backed by these. This is the scattered info we centralized.
- manufacturer https://www.madebyradius.com brand lists a pure silk floss (coconut oil + carnauba wax) alongside a separate vegan nylon floss
- other https://www.mamavation.com/beauty/toxic-pfas-dental-floss-tooth-floss.html Radius flosses non-detect for organic fluorine
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