In reply to Rog Wilko:
If its this stuff - https://www.doctissimo.fr/medicament-ALCOOL-MODIFIE-COOPER.htm - then its hard to tell from the google translation of the page. To be effective against covid-19 a sanitizer needs to be at least 60% alcohol, so if its 70% alcohol and you use a reasonable amount then it should be ok. Your call though.
I wouldn't recommend cleaning your skin with meths in anything except an emergency. Meths contains nasty additives. And pure or near-pure alcohol needs to be mixed with an emollient to protect your skin.
Here's an article on making your own hand sanitiser, based on formulations produced by the WHO: https://www.wired.com/story/how-to-make-hand-sanitizer/
Really though, its best not to rely on hand sanitizer. Wear decent disposable gloves if you got out and have to touch things, remove them safely (https://www.globus.co.uk/how-to-safely-remove-disposable-gloves), and wash your hands with soap and water. A lot.
Post edited at 16:16