Why Sunscreen Is Essential for Your Skin 

Sunscreen isn’t just a summer essential—it’s a daily must-have. Dermatologists agree it’s the most important skincare product you can use to prevent signs of aging, sun damage, and even skin cancer. 

Why You Need Sunscreen Daily 

• Prevents premature aging (wrinkles, large pores, uneven texture) 

• Reduces risk of skin cancer 

• Protects against UV damage year-round 

Understanding UV Rays 

• UVA: Penetrates deeply; causes aging and may lead to cancer 

• UVB: Causes sunburn; also linked to skin cancer 

• UVC: The most dangerous, but naturally filtered by the ozone layer 

How to Use Sunscreen Properly 

• Use broad-spectrum SPF 30 or higher 

• Apply 30 minutes before sun exposure 

• Reapply every 2 hours, or more if swimming or sweating 

• Use 1 oz (a shot glass full) for full body coverage 

Types of Sunscreens 

• Chemical sunscreens: Absorb UV rays 

• Pros: Lightweight, invisible 

• Cons: May irritate sensitive skin 

• Physical sunscreens: Reflect UV rays (zinc oxide, titanium dioxide) 

• Pros: Gentle, safer 

• Cons: May leave a white cast 

Expert Tip 

Opt for sunscreens that combine chemical and physical filters for optimal protection and cosmetic elegance. 

Environmental Factors Affecting UV Exposure 

• Time of day: Strongest between 10 AM–4 PM 

• Location: UV stronger near the equator and at high altitudes 

• Reflection: Snow, sand, and water increase UV exposure 

• Clouds: Don’t block all UV rays—protection is still needed