How should sunscreen be used? 

Applying sunscreen is crucial to protect the skin against damage caused by ultraviolet (UV) radiation from the sun. Here are some guidelines on how to use sunscreen correctly: 

1. Choose the right sunscreen: 

– Be sure to select a sunscreen with an SPF (sun protection factor) appropriate for your skin type and environmental conditions. An SPF 30 is generally sufficient for daily use, but you can opt for a higher SPF if you are exposed to the sun for extended periods of time or in sunnier climates. 

2. Apply enough: 

– Use a sufficient amount of sunscreen to cover all exposed skin. It is recommended to apply at least 2 milligrams per square centimeter of skin. If you use an insufficient amount, effective protection is significantly reduced. 

3. Apply before sun exposure: 

– Apply sunscreen at least 15-30 minutes before sun exposure to allow the skin to absorb it properly. Applying sunscreen just before going out may not provide adequate protection. 

4. Reapply regularly: 

– Reapply sunscreen every 2 hours, or more frequently if you are swimming or sweating. You should also reapply after toweling off, as water and friction can reduce the effectiveness of sunscreen. 

5. Don’t forget forgotten areas: 

– Be sure to apply sunscreen to all sun-exposed areas, including the neck, ears, lips and tops of feet. Many people forget these areas, which can lead to sunburn. 

6. Use it even on cloudy days: 

– Even if it is cloudy, UV rays can penetrate clouds and cause skin damage. Therefore, it is advisable to use sunscreen even on cloudy days. 

7. Combine with other protective measures: 

– In addition to wearing sunscreen, consider other protective measures, such as wearing protective clothing, wide-brimmed hats and seeking shade when possible. 

8. Check the expiration date: 

– Make sure your sunscreen is within its expiration date. Using expired products can reduce the effectiveness of protection. 

Remember that proper use of sunscreen is essential to protect your skin against premature aging, sunburn and the risk of developing skin cancer.