Which hand sanitizer? Alcohol or Alcohol-free? Ethanol or…
There are two main types of hand sanitisers: alcohol-based and alcohol-free. Alcohol or Alcohol-free? Alcohol-free hand sanitisers contain an active chemical called benzalkonium chloride. They can reduce microbes but are less effective than alcohol. Alcohol-based hand sanitisers contain either isopropanol or ethanol. Human has a long history of using Alcohol as antiseptic medicine since 1363…