Does hand sanitizer expire?
Yes. Here’s why, how long it lasts, and whether that old bottle in the car still works.
Why hand sanitizer expires
The germ-killing ingredient in hand sanitizer is alcohol, either ethanol or isopropyl alcohol. Alcohol evaporates. Most pumps and flip caps aren’t airtight, so every time you open the bottle, and slowly even when you don’t, a little alcohol escapes.
CDC says hand sanitizer needs at least 60% alcohol to work well. The expiration date is the maker’s estimate of how long the product stays at its labeled strength. After that, there’s no guarantee it’s still above the line.
Where to find the date
Look on the back label or the bottom of the bottle, usually printed as “EXP” with a month and year. Most sanitizers are dated two to three years after they were made.
Some bottles have no date at all. That can be legal: under federal rules, over-the-counter products without dosage limits, like hand sanitizer, don’t need an expiration date if the maker has data showing they stay stable for at least three years. Others were made under temporary FDA policies during COVID-19.
Is it still good?
| What it means | What to do | |
|---|---|---|
| Before the date, cap kept closed | Should work as labeled | Use it. |
| A few months past the date | Probably weaker | Fine in a pinch. Wash with soap when you can. |
| Years past the date, or often left open | May be well under 60% | Replace it. |
| Left in a hot car all summer | Alcohol loss is faster | Replace it if it’s old or smells weak. |
Is expired hand sanitizer safe?
Using it won’t hurt you. The concern is that it may not work. FDA says it has no information on how well sanitizers work past their expiration date, and a product that has dropped below 60% alcohol may reduce germs less than you expect.
If expired sanitizer is all you have, using it is better than nothing. But soap and water is the better choice whenever a sink is nearby, and it doesn’t expire in any way that matters.
How to make it last
- Keep the cap or pump closed.
- Store it below 105°F (40°C). FDA advises keeping it away from heat and flame, since it’s flammable.
- Don’t leave it on a sunny dashboard.
- Buy sizes you’ll finish in a year or two rather than a jug that will sit for five.
Quick questions
Can I use hand sanitizer that’s a year past its expiration date?
You can, and it’s better than nothing, but it may be weaker than labeled. Use soap and water when you can, and replace the bottle.
Does unopened hand sanitizer expire?
Yes, it still carries a date, but a sealed bottle loses alcohol much more slowly than an open one, so it’s more likely to still be at full strength.
Why doesn’t my hand sanitizer have an expiration date?
Federal rules let some over-the-counter products skip the date if they’re shown to be stable for at least three years. Some sanitizers made during COVID-19 also shipped without dates under temporary FDA policies.
How can I tell if hand sanitizer has gone bad?
You can’t measure alcohol at home. Signs it has lost strength: a faint smell, a watery or separated texture, or drying much faster or slower than it used to. Check the date and replace if in doubt.
Does soap expire?
Bar and liquid soap can have dates too, but soap works by lifting germs off your skin rather than killing them, so an older soap still cleans your hands.