Science, Tech, Math › Science How to Make Homemade Hand Sanitizer Make Your Own Homemade Hand Sanitizer Share Flipboard Email Print Elenathewise / Getty Images Science Chemistry Projects & Experiments Basics Chemical Laws Molecules Periodic Table Scientific Method Biochemistry Physical Chemistry Medical Chemistry Chemistry In Everyday Life Famous Chemists Activities for Kids Abbreviations & Acronyms Biology Physics Geology Astronomy Weather & Climate by Anne Marie Helmenstine, Ph.D. Dr. Helmenstine holds a Ph.D. in biomedical sciences and is a science writer, educator, and consultant. She has taught science courses at the high school, college, and graduate levels. Updated August 05, 2019 Some commercial hand sanitizer contains ingredients as scary as the germs they protect you from, so why not make your own hand sanitizer from ingredients you select? This is an excellent project for kids as well as adults since the project can be expanded to include a discussion about hygiene and disinfection. You'll save money, protect yourself from germs, and can customize the scent of the hand sanitizer so it doesn't smell medicinal. Homemade Hand Sanitizer Ingredients 2/3 cup 99% rubbing alcohol (isopropyl alcohol) or ethanol1/3 cup aloe vera gel8-10 drops essential oil, optional (such as lavender, vanilla, peppermint, grapefruit)bowl and spoonfunnelrecycled liquid soap or hand sanitizer bottle Make Hand Sanitizer Nothing could be easier! Simply mix the ingredients together and then use the funnel to pour them into the bottle. Screw the pump back onto the bottle and you're ready to go. How It Works The active ingredient in this hand sanitizer recipe is the alcohol, which needs to comprise at least 60% of the product in order to be an effective disinfectant. Essential Oils in Hand Sanitizer In addition to adding fragrance to your hand sanitizer, the essential oil you choose may also help protect you against germs. For example, thyme and clove oil have antimicrobial properties. If you are using antimicrobial oils, only use a drop or two, since these oils tend to be very powerful and might irritate your skin. Other oils, such as lavender or chamomile, may help soothe your skin. Continue Reading