Is Benzalkonium Chloride safe for the Aneros?

The ACO page seem to have information for professionals regarding the usage (ultra sound exam, gynecological use and for rectal samples), Apoteket mention using it for getting a catheter into a continent stoma. Guess it makes sense to make it disinfecting for the later purpose.

Guess that consume less of it than using it for the Aneros or anal sex though.

A couple of thoughts.

Even FDA certified injectibles contain very small amounts of toxic substances intended to extend shelf life by discouraging growth of bacteria or fungi. Quantity of the substance and frequency of exposure is what counts. If something is used on a regular basis, pick your 'poison' carefully.

Cyclic maneuvering of the massager tends to 'rub' the lube into rectal tissue and increases the absorption compared to a simple lube job to insert a catheter or medical appliance.

For example: My lube choices are limited by a sensitivity to glycerin. When on travel I use Slippery Stuff Gel (blue label) which has a minute amount of a known carcinogen. Were I to use it, regularly, several times a week I'd give their 'parabens free' a try and maybe switch to that. (at home I use a shea butter based lube).

Rumel's natural jelly is compounded in a double boiler where temperature control can 'pastuerize' it, killing off the more serious 'uglies.'