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A 32-year-old member asked:

Any ideas why (hand) sanitizer have an expiration date?

1 doctor answer6 doctors weighed in
Dr. Tanya Russo
Pediatrics 25 years experience
Rubbing acetone: Rubbing alcohol turns into acetone over time, usually becoming ineffective after about two years from manufacture. hand sanitizer has a high concentration of alcohol.

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Last updated Nov 28, 2014
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