By now, you may feel as though you've purchased more hand sanitizer in the last few months than in your entire life. As we've seen go-to brands like Purell and Touchland become harder to come by than a limited-edition Supreme drop, many of our favorite beauty brands across hair, skin, and makeup have taken it upon themselves to develop their own bottles of germ-killing gel — and often donating large quantities to hospitals and essential workers on the frontlines of the COVID-19 pandemic