On the website of the manufacturer of fluxes for paired, a comment on one of these fluxes...

My grandmother grabbed a bowl of rm and smashed it on my back!
Surprisingly, she had a back!
It is not harmful???? to

In the case of TR-RM flow, it is not harmful, because it includes a natural component (Cannabis) and a harmless thickener.
I rush to reassure you there is no aggressive acid there, but still your grandmother’s bowl is worth taking away.
Our products are not certified for medical use.