The Ultimate Guide to Sunscreen

The Ultimate Guide to Sunscreen

Are You Using It Correctly?

We all know sunscreen is essential for protecting our skin from the sun’s harmful UV rays. But are you really using it the right way? At Aegis MD, we care about your skin’s health and want to ensure you’re getting the most out of your sun protection routine. Here’s a breakdown of what board-certified dermatologists recommend for effective sunscreen use.

Choose the Right Sunscreen

Not all sunscreens are created equal. For the best protection, choose one with:
  • SPF of 30 or higher: This protects your skin from approximately 97% UVB rays
  • Broad-spectrum coverage: Shields you from UVA (aging rays) and UVB (burning rays)
  • Water resistance: Provides lasting protection even when sweating or swimming
  • Tinted formulas with iron oxide are ideal for preventing dark spots. Iron oxide also protects against visible light, which can contribute to hyperpigmentation.
Tinted sunscreen is especially beneficial if you’re prone to discoloration or melasma.

Apply Before Heading Outdoor

One common mistake is applying sunscreen only after they’ve stepped outside or spent time in the sun. Sunscreen is most effective when used at least 15 minutes before sun exposure. This gives your skin time to absorb the sunscreen and start working correctly. Waiting until you’re in the sun leaves your skin vulnerable to damage and burns.

Use Enough Sunscreen

Think you’re using enough sunscreen? You might be surprised. To adequately cover exposed skin, adults need about 1 ounce of sunscreen—roughly the amount to fill a shot glass. Depending on your body size, you may need more. Rub the sunscreen thoroughly into your skin to ensure complete coverage and absorption.

Don’t Miss These Spots

Certain areas are often forgotten during sunscreen application. Make sure to cover:

  • Your neck, face, ears, and the tops of your feet and legs.
  • Scalp if you have thinning hair (use sunscreen or wear a hat).
  • Lips with a balm containing SPF 30 or higher.

Reapply, Reapply, Reapply!

The number one reason people get sunburned? Not reapplying sunscreen.
Even the best formulas need to be reapplied every two hours, especially if you’ve been swimming or sweating. Also, check the expiration date on your sunscreen; an expired product won’t give you the protection you need.

Sunscreen Matters Year-Round

Sunscreen isn’t just for beach days or summer afternoons. Your skin is exposed to harmful UV rays whenever you go outside, even on cloudy days and during winter. Snow, for example, reflects up to 80% of UV rays, increasing your exposure.

Whether on vacation or walking around your neighbourhood, wearing sunscreen should be a non-negotiable part of your daily routine. At Aegis MD, we can help you find the right sunscreen for your skin type and concerns.

Visit Aegis MD, partner of Dermapure St. Catharines, for your personalized consultation! We serve patients from Niagara, Hamilton and St. Catharines!