Well put, Brian. The two tubes I have on hand, allegedly the PBF, have next to no info on them. Only: "Plaque-biofilm loosening formula" (whatever that means) and a little tag "with xylitol".

The single active ingredient on the back is: "Sodium Monoflurophosphate (0.14% w/v fluoride ion)". It's purpose is "Anticavity".

I'm comforted by the ion.

David 2
SCC of occult origin 1/09 (age 55)| Stage III TXN1M0 | HPV 16+, non-smoker, moderate drinker | Modified radical neck dissection 3/09 | 31 days IMRT finished 6/09 | Hit 15 years all clear in 6/24 | Radiation Fibrosis Syndrome kicked in a few years after treatment and has been progressing since | Prostate cancer diagnosis 10/18