SPF Every Day: Why Sunscreen Is the Most Important Step in Your Routine

I'll be honest — sunscreen was the last thing I added to my daily routine. I was in Florida, I liked a little color, and SPF felt like an extra step. Then I started learning about what UV damage actually does to skin at a cellular level and I never skipped it again.

If there's one thing every dermatologist, esthetician, and clean beauty expert agrees on — it's this: SPF is the single most important step in any skincare routine. Not the most glamorous. Not the most fun to talk about. But the most impactful, without question.

What UV Rays Actually Do to Your Skin

There are two types of UV rays that reach your skin every day:

• UVB rays — the ones that cause sunburn. They damage the surface of the skin and are the primary cause of skin cancer.
• UVA rays — the ones that cause aging. They penetrate deeper into the dermis, breaking down collagen and elastin, causing fine lines, wrinkles, sagging, and hyperpigmentation. UVA rays pass through glass — yes, even sitting by a window or driving counts as UV exposure.

Up to 80% of visible skin aging is caused by UV exposure. Not genetics. Not diet. Sun damage. The dark spots, the fine lines, the leathery texture — most of it is preventable with daily SPF use starting early.

You Need It Even When It's Cloudy

Up to 80% of UV rays penetrate cloud cover. Overcast days, rainy days, winter days — the UV index doesn't drop to zero just because you can't see the sun. Daily SPF means every day, not just beach days.

What SPF Number Do You Actually Need?

For daily use, SPF 30 is the minimum most dermatologists recommend, blocking about 97% of UVB rays. SPF 50 blocks about 98%. The jump from 30 to 50 is real but not dramatic — what matters more is applying enough and reapplying when you're outdoors.

Look for broad spectrum on the label — this means the formula protects against both UVA and UVB. SPF alone only measures UVB protection.

Mineral vs. Chemical Sunscreen

• Mineral (physical) sunscreen uses zinc oxide or titanium dioxide to sit on top of the skin and reflect UV rays. Gentler on sensitive skin, reef-safe, and increasingly popular in clean beauty. The old formulas left a white cast, but modern mineral SPFs blend much more smoothly.
• Chemical sunscreen absorbs UV rays and converts them to heat. Lighter texture, easier to blend, but some chemical filters (like oxybenzone) have raised concerns about hormone disruption and environmental impact.

In the GlowByBree world, we lean toward mineral and clean chemical formulations — effective without the ingredients we'd rather avoid.

How to Fit It Into Your Routine

SPF goes on last in your morning skincare routine — after moisturizer, before makeup. Apply generously to your face, neck, and any exposed skin. If you're outdoors, reapply every two hours. Many tinted SPFs double as a light base, making this step genuinely easy to love.

The best sunscreen is the one you'll actually wear every day. Find one that works with your skin type and make it non-negotiable.

Browse our Skincare collection for clean SPF options that protect without compromise.