How Long Does Sunscreen Last?

Understanding how long sunscreen lasts is crucial for maintaining effective sun protection. Sunscreen’s effectiveness can diminish over time, and using it beyond its intended shelf life can compromise your protection against UV radiation.

Most sunscreens come with an expiration date printed on the packaging, which indicates how long the product is expected to remain effective. Typically, sunscreen is effective for up to three years from the date of manufacture. After this period, the active ingredients can break down, reducing the sunscreen's ability to protect your skin from UV rays.

For optimal protection, check the expiration date on your sunscreen and replace it if it has expired. If you can't find the expiration date or if the sunscreen is older than a year, it's a good practice to replace it to ensure you are getting effective protection.

Proper storage can also impact the longevity of sunscreen. Store your sunscreen in a cool, dry place, away from direct sunlight and heat, to prevent the active ingredients from breaking down prematurely. Always keep the cap tightly closed to avoid contamination.

In addition to expiration, the amount of sunscreen you use affects its effectiveness. Apply sunscreen generously to all exposed skin, about 15 minutes before sun exposure, and reapply every two hours or more frequently if swimming or sweating.

In conclusion, sunscreen typically lasts up to three years, but it’s important to check the expiration date and store it properly to maintain its effectiveness. Regularly replacing sunscreen and using it correctly will help ensure you are protected from harmful UV rays.

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