@SashaClarkson#handsanitizer I have a bad habit of overthinking things. I just needed to use 70ml and a bit of alcohol and add enough glycerine / aloa vera to top it up to 100ml and its done! (Doh!)
Pretty sure that 75% of Boots surgical spirit plus 25% glycerine or aloa vera would make up at least the 70% alcohol content recommended for #COVID19 by #WHO