1. Reapply Every 2 Hours, Indoors Too! UV rays can penetrate through windows, so sunscreen isn't just for the outdoors. 2. Cloudy Days? Sunscreen Still a Must Up to 80% of UV rays still reach your skin through clouds.

3. SPF in Makeup Isn’t Enough Makeup with SPF doesn’t give you full protection unless applied in thick layers. 4. Don't Forget Your Scalp and Ears These are two of the most commonly forgotten spots for sun protection.

5. Sunscreen Expires Always check the expiration date—expired sunscreen can lose its effectiveness. 6. Chemical vs. Physical Sunscreen Chemical sunscreens absorb UV rays, while physical ones reflect them. Know which suits your skin!

7. SPF Over 50? Not Much Extra Benefit SPF 100 only blocks 1-2% more UV rays than SPF 50, so reapplying is more important. 8. Sunscreen and Vitamin D You can still get your daily dose of Vitamin D even when using sunscreen.

9. Don’t Forget Your Lips Use a lip balm with SPF to protect this sensitive area from burns. 10. Waterproof Sunscreen Doesn’t Exist "Sweat-resistant" is more accurate; reapply after swimming or heavy sweating.

11. Daily Use Slows Skin Aging Sunscreen isn't just for the beach—it’s a key part of your anti-aging routine. 12. Apply Sunscreen Before Moisturizer If you use chemical sunscreen, apply it before your moisturizer for better absorption.

13. Your Clothing Doesn’t Block All UV Thin, light clothing offers little UV protection, so wear SPF under your clothes or use UV-blocking garments. 14. Sunscreen for Darker Skin Tones is Essential Melanin offers some protection, but everyone can get skin damage from UV rays.

15. Higher SPF for High Altitude and Snow UV rays intensify at higher altitudes, and snow reflects up to 80% of UV rays, so boost your SPF when skiing or hiking!