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In this video:
* Brief info on COVID-19 and hand hygiene (skip to 1:20 if you're sick of this)
* What you need in a hand sanitizer to kill coronavirus
* Reviewing DIY hand sanitizer recipes that will and won't work
* Extra tips on using hand sanitizer
Note that pharmaceutical/cosmetic/food grade alcohols are safest for use on skin – use other grades at your own risk.
I do not recommend using methylated spirits that contain methanol (many but not all of them do).
Some of the hand sanitizer recipes I've come across show some disturbing lack of comprehension of what we're up against. For some reason, people who can't calculate percentages or spell “coronavirus” still felt that they were qualified to make up their own pandemic-halting hand sanitizer recipes. Phrases like “this has worked for me for years” and “you can adjust how much alcohol you want to use” were frighteningly common.
Alcohol content calculator: https://docs.google.com/spreadsheets/d/191D9TTHEJtSrB1OkPr1vw6ItPXFvbbl5–2rHLb9F2M/copy
COVID-19 info from the WHO: https://www.who.int/emergencies/diseases/novel-coronavirus-2019
US CDC: https://www.cdc.gov/coronavirus/2019-nCoV/index.html
Australian Health Department: https://www.health.gov.au/news/health-alerts/novel-coronavirus-2019-ncov-health-alert
Flattening the curve animation by Siouxsie Wiles & Toby Morris, more info: https://www.vox.com/2020/3/10/21171481/coronavirus-us-cases-quarantine-cancellation
Lab Muffin Beauty Science is a channel by me, Michelle – I'm a chemistry PhD and beauty lover, here to explain how beauty products work, debunk myths, and help you make smarter decisions about your skincare, hair and makeup!
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Blog post for this video with more info: https://labmuffin.com/bad-diy-hand-sanitizers-and-a-few-good-ones-video/