May is Skin Cancer Awareness Month, and there’s no better time to talk about one of the most powerful tools for protecting your skin: sunscreen. Daily SPF use isn’t just about preventing sunburns — it’s essential for reducing the risk of skin cancer and preventing premature aging, like fine lines, discoloration, sun spots, and rough texture.
We know it’s easy to tune out sunscreen reminders, but trust us—consistent use is one of the simplest, most effective investments you can make for your skin’s long-term health (and beauty). Let’s break down the basics: the different types of sunscreen, how to use them properly, and why now is the perfect time to get a closer look at your skin health.
Physical vs. Chemical Sunscreen: What’s the Difference?
Not all sunscreens are created equal. There are two main types: physical and chemical.
Physical sunscreens (also called mineral sunscreens) sit on top of the skin and reflect UV rays away like a shield. They typically use active ingredients like zinc oxide or titanium dioxide. Physical sunscreens start working immediately after application and are generally less likely to irritate sensitive or acne-prone skin, making them a great choice for post-procedure recovery. However, they can sometimes leave a white cast and may feel heavier on the skin.
Chemical sunscreens, on the other hand, absorb into the skin and convert UV rays into heat, which is then released from the skin. These formulas often include ingredients like avobenzone, octinoxate, and octocrylene. Chemical sunscreens tend to feel lighter, spread more easily, and are often invisible on all skin tones—ideal for layering under makeup. They do, however, need about 15–20 minutes after application to activate and can occasionally cause irritation for those with sensitive skin.
Which One Is Better?
The truth is, there’s no one-size-fits-all answer—it depends on your skin type, lifestyle, and preferences.
If you have sensitive, rosacea-prone, or acne-prone skin, or you’ve recently had an in-office treatment, a physical sunscreen might be your best bet. It provides immediate protection and is often more soothing to compromised skin.
If you prefer a lighter texture, need something that won’t leave a white cast, or live an active, outdoorsy lifestyle, a chemical sunscreen may be a better fit. Many modern formulas even blend both types to give you broad-spectrum protection without the heavy feel.
When (and How) to Apply Sunscreen
Here’s the golden rule: Apply sunscreen every single morning as the last step in your skincare routine — even if you’re staying indoors. UV rays can penetrate windows and cause damage over time, even without direct sun exposure.
In the morning:
- Begin with a gentle cleanse to prep your skin.
- Follow with a toner to balance and refresh.
- Apply your moisturizer or serum to hydrate and nourish.
- Finish with a broad-spectrum sunscreen (SPF 30 or higher) as your final step before makeup.
Reapply every two hours if you’re outdoors, sweating, or getting direct sun exposure. If you’re mainly indoors, one solid morning application might be enough—but reapply if you’re near windows or heading outside later. And remember to apply a generous amount—most people use too little! Aim for about a quarter-sized amount just for your face.
Pro tip: If you wear makeup, reapply SPF with a powder sunscreen or setting mist to stay protected without disturbing your look.
Curious About Your Current Sun Damage?
If you’re wondering how much sun damage you already have—or simply want a deeper understanding of your skin’s overall health—now is the perfect time to find out. Our advanced clinical imaging system allows us to assess what’s happening beneath the surface, establish a baseline, and create a personalized plan to help correct existing damage and protect your skin moving forward.
The sooner you start, the better your long-term results—and the easier it is to maintain youthful, healthy, resilient skin.
Not sure where to start?
We love the ZO Skin Health lineup of sunscreens, each designed for specific skin needs and lifestyles. Try Broad-Spectrum Sunscreen SPF 50 for post-procedure or sensitive skin, Daily Sheer Broad-Spectrum SPF 50 for a water- and sweat-resistant finish, or Sunscreen + Primer SPF 30 if you want a makeup-gripping, silky texture. For on-the-go touch-ups, Sunscreen + Powder SPF 45 is perfect for reapplying protection without disturbing your makeup.
Final Thoughts
Sunscreen is one of the most powerful (and underrated) skincare tools out there. Making SPF a non-negotiable part of your daily routine doesn’t just protect your skin now—it sets you up for better skin health for years to come.
Whether you need help choosing the right sunscreen or want a deeper look at your skin’s health through our advanced imaging system, we’re here to support you. Start protecting your skin today—your future self will be glad you did.
