How to Make Hand Sanitizer | DIY | Real Simple

Hand Sanitizer Is Selling Out in Many Places—Here’s How to DIY Your Own. You can mix up a big batch in seconds. A few things to keep in mind: for hand sanitizer to actually be effective at killing germs, it must contain at least 60 percent alcohol, according to the CDC. Try to stick to the ratios listed below, but feel free to adjust the amounts to make a smaller or larger batch.