If it’s of any help to those looking for hand sanitiser, I have discovered that you can purchase “Invertu” direct from the manufacturer Medimark. They have bulk packs of 30 x 50ml available for £48.25. That seems quite reasonable if you club together with others to share the order!
I’m not employed by or in any way associated with Medimark - just posting this as I know some people are struggling to get hold of sanitiser.