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The Importance of Sunscreen for Healthy Skin All Year Round

Sep 24, 2025

The Importance of Sunscreen for Healthy Skin All Year Round

When most people think of sunscreen, summer days at the beach or pool often come to mind. But dermatologists know that sunscreen is one of the most important steps in maintaining healthy skin year-round. Whether you are outdoors on a sunny day or inside near a window, protecting your skin from ultraviolet (UV) damage is essential for long-term skin health.

Why Sunscreen Matters

Ultraviolet radiation from the sun is the number one cause of premature skin aging and skin cancer. UVA rays penetrate deeply into the skin and accelerate signs of aging such as wrinkles, fine lines, and sunspots. UVB rays are responsible for sunburns and play a key role in the development of skin cancers. Daily sunscreen use blocks both UVA and UVB rays, significantly reducing these risks.

Benefits of Daily Sunscreen Use

  • Prevents Skin Cancer: Consistent use of broad-spectrum sunscreen lowers the risk of developing basal cell carcinoma, squamous cell carcinoma, and melanoma.
  • Slows Premature Aging: Sunscreen shields skin from sun-induced collagen breakdown, keeping your skin smoother and firmer.
  • Protects Against Sunburn: Preventing burns not only avoids discomfort but also lowers your lifetime UV exposure.
  • Reduces Pigmentation & Dark Spots: Sunscreen helps prevent hyperpigmentation and melasma, improving skin tone.
  • Works Year-Round: Even on cloudy days, up to 80% of UV rays still reach your skin. Windows also let UVA rays indoors, making daily protection important.

Choosing the Right Sunscreen

Dermatologists recommend using a broad-spectrum sunscreen with:

  • SPF 30 or higher
  • Water resistance if you’re swimming or sweating
  • Ingredients that suit your skin type (zinc oxide and titanium dioxide are great options for sensitive skin)

Remember to reapply every two hours, and more often if swimming or sweating.

Tips for Best Protection

  • Apply sunscreen 15 minutes before going outside.
  • Use about one ounce (a shot glass full) to cover your entire body.
  • Don’t forget overlooked areas like ears, neck, hands, and scalp.
  • Combine sunscreen with other sun-safe habits: wear protective clothing, hats, and sunglasses, and seek shade when possible.

The Bottom Line

Sunscreen isn’t just for summer—it’s a daily essential for protecting your skin from harmful UV rays, premature aging, and skin cancer. By making sunscreen part of your daily routine, you’re investing in your skin’s long-term health and appearance.

At Redwood Empire Dermatology, our providers are passionate about educating patients on skin protection and early detection. If you’d like personalized recommendations for sunscreen or need a professional skin check, schedule an appointment with our team today