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.
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
Common questions
Does the RADIUS Silk Floss have plastic in it?
No. Nothing that touches your skin on the RADIUS Silk Floss is plastic or silicone — the skin path is silk.
What is the RADIUS Silk Floss made of?
Part by part, the RADIUS Silk Floss is: thread — silk; coating — candelilla wax.
Where is the RADIUS Silk Floss made?
The RADIUS Silk Floss is made in the USA.
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
Spot a mistake or something out of date? Let us know — corrections are how this stays accurate.