Here's what I found online...
It turns out that for a sanitizer to actually sanitize, you need at least 60% alcohol.
Here’s a simple formula that will do the trick:
•Use 100% pure Aloe Vera Gel
•Use 91% or 99% Isopropyl Alcohol
•Add 3 parts of gel to 7 parts of Alcohol (I used tablespoons) and add to a sealable plastic dispenser (the kind you can find in the cosmetic or travel section of most drug stores).
The resulting gel will be only slightly thinner than the store bought kind. You might want to add some scent to mask the slightly stronger smell. The gel will feel a bit stickier on your hand because it also contains a moisturizer.
Some people recommend using Vodka instead of Isopropyl. The problem is: alcohol itself is typically only 40% alcohol – which isn’t enough to do a proper job, much less when mixed with the Aloe Gel. But if you can find some 180 proof spirts, you can use th
at 1:56 AM on Oct. 2, 2010