Comment by md_

Lots of "glide"-style floss is PTFE tape: https://en.wikipedia.org/wiki/Oral-B_Glide.

You can buy non-PTFE floss, like https://www.test.de/Zahnseide-Faedeln-ohne-schaedliche-Chemi....

It's not really about "waxed" vs non-waxed, though.