How long can I keep my sunscreen?

Your sunscreen is your essential ally in protecting your skin from UV rays, but do you know how long it remains effective after you buy or open it? Here is everything you need to know to avoid compromising its effectiveness, continue caring for your skin, and protect it as well as possible.

The shelf life of sunscreen

Like all cosmetic products, sunscreen has an expiration date. This period is indicated on the packaging by a small icon depicting an open jar, with a number and the letter "M" (for months). For example, if you see "12M", this means that your sunscreen remains effective for 12 months after opening.

As a general rule, unopened sunscreen can be kept for between 2 and 3 years. But once opened, it is recommended that you use it within 6 to 12 months to ensure optimal protection.

How can you tell if your sunscreen is still good?

Even if you follow the stated period of use, certain factors can accelerate the degradation of sunscreen. Here are some signs that show it is no longer effective:

• Change in texture or smell : If your sunscreen becomes lumpy, runny, or develops a strange smell, it’s time to get rid of it.
• Altered color : Sunscreen that turns yellow or changes color has probably lost its protective properties.
• Storage in unsuitable conditions : If you leave your sunscreen in a hot place (such as by the pool or in the car), its UV filters may deteriorate more quickly.

The risks of using expired sunscreen

Expired sunscreen may look normal, but it no longer effectively protects against UV rays. This means your skin is exposed to risks such as sunburn, premature aging, or even more serious long-term damage. Remember that sun protection is a key step in preserving your skin’s health and radiance.

Best practices for extending its shelf life

1. Store your sunscreen away from heat and light : Keep it in a cool, shaded place, such as a drawer or an indoor shelf.
2. Close the tube tightly : Prolonged exposure to air can affect the UV filters.
3. Avoid lending it : Repeated contact with different people can contaminate the product.

A little tip to avoid waste

If you use the right amount of sunscreen (about a teaspoon for your face and a handful for your body with each application), your tube should not last more than one summer. This way, you can be sure you always have fresh, effective sunscreen!