Not dumb at all, but unfortunately P cannot be esterified the same way as E or T, which would be required for long application intervals. (There are esters of it, like CPA, but they do other things). And when injected in pure form it needs one or two applications daily just like oral or topical.

Thanks! Just what I deserve for copying and pasting. FIXED :-D

Fortunately, death is a very remote contingency :-)

At least we can help ourselves.

To add to the lab aspect, you need space and time for washing and sterilizing vials or filtration, which can be slow, etc. For us this is most weekends and we could not do this on borrowed space at school.

Good luck! But be aware, we invested well into the 5 figures up front to get properly equipped and started. Be double aware using someones lab: you'll need longer and regular access on the one hand, and you want nobody (repeat: nobody) to know what you are doing, as someone will talk eventually.

I fear it'll put folks off sterilizing their vials, which would be a mistake.

It has problems, though, especially regarding heat sterilization. At times it claimed that heat through autoclaving wouldn't penetrate vials (which it does). Now it claims that heating vials will produce benzaldehyde (which would need additional catalysts + it'd not be the poison they broadly claim)

Totally up to the destination, inside EU typically up to a week.