Does Sunscreen Expire? How to Check the Date

How can I tell if sunscreen has expired?

Check the container for its expiration date. If the date is missing, count from when you bought it; if you cannot tell how old it is, discard it rather than guess.12

Sunscreen can spoil before its printed date, because ink is a poor preservation system. Replace it if the color changes, the smell becomes different or unpleasant, it separates into layers, or the texture turns dry and flaky.3

A mineral sunscreen that has gone bad may become gritty, develop small pebbles, or become hard to rub in, giving the formula a brief career in geology. A chemical sunscreen may turn yellow or watery and stop spreading smoothly; these formulas can break down faster after long exposure to sunlight.4

Sunscreen comes as lotion, cream, stick, gel, oil, butter, paste and spray; the product aisle has assembled an impressive wardrobe, with no apparent dress code. Directions can vary by form, so use the label on the bottle you have.1

Can I use sunscreen after its expiration date?

No. Do not use expired sunscreen, even if it looks unchanged. Its active ingredients can break down and stop providing effective protection, increasing your risk of sunburn and sun damage. Expired sunscreen can also irritate skin or cause an allergic skin reaction, and mold or bacteria can grow inside the container over time.134

How long does sunscreen last after opening?

Where a date is printed, follow that date. For a United States sunscreen without one, the three year count starts at purchase, not opening. A United Kingdom label may show an open jar symbol with an M and a number; that number tells you how many months the product lasts after opening. A bottle used every day as directed should generally be used up within a few weeks or a couple of months, so three years is a shelf life limit, not a recommended time to keep using one bottle.145

How should I store sunscreen?

Keep sunscreen in a cool, dry place out of direct sunlight. When you are outside, put the container in the shade or wrap it in a towel. Avoid leaving it in a hot car, and close the lid after each use; heat and sunlight can speed up ingredient breakdown.14

What should I use after throwing it away?

Choose a fresh sunscreen labeled broad spectrum, SPF 30 or higher, and water resistant. Apply it to dry skin 15 minutes before going outdoors. Reapply about every two hours while outside, and after swimming or sweating. Shade and clothing that covers exposed skin add protection alongside sunscreen.6