Hand Sanitizers | COVID-19 | FDA- propotion of handsanitizer ,Very small amounts of hand sanitizer can be toxic, even lethal, to young children. For more information, visit Q&A for Consumers: Hand Sanitizers and COVID-19 and Safely Using Hand Sanitizer ...How to Make Hand Sanitizer: A Step-by-Step GuideThe key to making an effective, germ-busting hand sanitizer is to stick to a 2:1 proportion of alcohol to aloe vera. This keeps the alcohol content around 60 percent.