Expired sunscreen risks: Why last year's bottle won't protect you
Sunscreen cream is crucial in skincare, shielding the skin from the sun's harmful rays. If you're wondering whether your sunscreen from last year is still good to use.
Is using sunscreen necessary?
Is last year's sunscreen still effective?
The answer is no. An opened sunscreen, he explains, loses most of its protective properties over time, even before its expiry date - the cosmetic's efficiency against the sun's rays diminishes due to these changes.
Temperature fluctuations can alter the product's consistency and chemical composition, rendering it ineffective against sun damage. However, unopened sunscreens purchased off-season (e.g., in September or October) and stored correctly in cool, dry conditions may still be viable for use in the current year.