Generally, you should reapply sunscreen every two hours, especially after swimming or sweating. This ensures continuous protection from the sun's harmful ultraviolet (UV) rays.
Key Guidelines for Sunscreen Application:
- Frequency: Reapply every two hours, or more frequently if swimming or sweating.
- Special Circumstances: If you primarily work indoors away from windows, reapplication may not be as crucial. However, consider your outdoor activity levels – even brief outdoor exposure requires vigilance. Keeping a spare bottle of sunscreen handy is a good precaution.
Why Frequent Reapplication is Important:
Sunscreen's effectiveness diminishes over time due to sweat, rubbing, and exposure to water. Regular reapplication maintains a protective barrier against UV radiation, preventing sunburn and reducing long-term sun damage risks.
Practical Tips:
- Keep it handy: Keep a bottle of sunscreen in your bag, car, and at your workplace for easy access.
- Check the label: Follow the specific reapplication instructions on your sunscreen's packaging. Some formulations may offer longer-lasting protection.
- Generous application: Use a generous amount of sunscreen. Less sunscreen means less protection.