5 Reasons Why SPF Still Matters in Fall

As the days grow cooler and the sunlight softens, it’s easy to think sunscreen can take a seasonal break. But here’s the truth: protecting your skin from UV damage is a year-round commitment. Even when skies are cloudy and the temperatures drop, UV rays are still working beneath the surface—causing cellular damage, collagen breakdown, and pigmentation changes that appear months later.

At Aster Aesthetics, we believe in protecting your glow every season. Here’s why SPF still deserves a place in your fall skincare lineup:

1. UV Rays Don’t Take a Vacation

Up to 80% of the sun’s UV rays penetrate through clouds and windows. Even on overcast or rainy Oregon days, UVA rays are quietly aging your skin by breaking down collagen and elastin. Unlike UVB rays (which cause sunburn), UVA rays are constant throughout the year—and they’re the ones responsible for fine lines, sagging, and pigmentation over time.

Pro tip: Keep your SPF by your morning skincare routine so it becomes a non-negotiable step—just like brushing your teeth.

 2. Fall Treatments Make Skin More Vulnerable

If you’re starting a series of microneedling or chemical peels, your fresh, renewed skin is especially sensitive to the sun. UV exposure during healing can lead to unwanted pigmentation or uneven tone. Wearing SPF daily protects your investment and ensures the best long-term results.

Aster Favorite: Colorescience Total Protection Face Shield Flex — a tone-adapting, mineral SPF that blends seamlessly for a radiant, even finish.

3. Blue Light and Indoor Exposure Still Cause Damage

We often think of SPF as outdoor-only protection, but blue light from phones, computers, and LED lighting can also trigger oxidative stress and hyperpigmentation. Modern mineral SPFs now include iron oxides and antioxidants that defend against these indoor aggressors—keeping your skin balanced and bright even on office days.

4. Sun Protection is Collagen Protection

Your skin’s firmness depends on collagen, which naturally declines with age. UVA exposure speeds that breakdown, leading to fine lines and loss of elasticity. Think of daily SPF as a collagen-preserving habit—an invisible layer of anti-aging protection that compounds over time.

5. SPF Completes Your Skincare Routine

No matter how advanced your treatments or products are, unprotected skin can quickly undo that progress. SPF seals in all your efforts—hydration, brightening, and barrier repair—while defending against the daily environmental stressors that dull the complexion.

Our fall mantra: Repair. Restore. Protect.

Aster’s Fall SPF Favorites

Colorescience Total Protection Face Shield Flex – mineral SPF that adjusts to your tone for a natural finish
Colorescience Brush-On Shield SPF 50 – perfect for touch-ups or post-treatment protection

SPF isn’t seasonal—it’s essential. As you transition into your fall routine, keep your sun protection close and your skin barrier supported. Protecting your skin now means smoother, healthier, and more radiant results year-round.

Ready for your Fall Skin Reset?