When it comes to protecting your skin, sunscreen is one of your best defenses. But with countless options on the shelf—SPF numbers, mineral vs. chemical, spray vs. lotion—it’s easy to feel overwhelmed. As a dermatologist, I often get asked: “How do I select the best sunscreen?” The answer depends on your skin type, lifestyle and preferences—but here’s how to make the best choice for you.
Look for Broad-Spectrum Protection
The most important feature of any sunscreen is broad-spectrum protection. This means it shields your skin from both UVA rays, which cause aging, and UVB rays, which cause sunburn. Both can contribute to skin cancer.
Choose SPF 30 or Higher
SPF, or Sun Protection Factor, measures how well a sunscreen protects against UVB rays. For most people, SPF 30 is sufficient for daily use, blocking about 97% of UVB rays. If you’re outdoors for extended periods or have fair or sensitive skin, consider SPF 50 or higher.
Know the Difference: Mineral vs. Chemical
• Mineral (Physical) Sunscreens: Contain zinc oxide and/or titanium dioxide. These sit on the skin’s surface and reflect UV rays. They are often preferred for sensitive skin, children or those prone to acne.
• Chemical Sunscreens: Absorb UV rays and include ingredients like avobenzone or octinoxate. These tend to feel lighter and are often preferred for everyday wear or under makeup.
Consider Your Skin Type
• Oily or acne-prone skin: Look for non-comedogenic, oil-free formulas, often labeled “matte” or “dry touch.”
• Dry or mature skin: Choose a sunscreen with added moisturizers, like hyaluronic acid or glycerin.
• Sensitive skin: Opt for fragrance-free mineral sunscreens to reduce the risk of irritation.
Pick a Formula You’ll Use
Sunscreen only works if you use it consistently. Whether it’s a lotion, gel, spray or stick, the best sunscreen is one you’re comfortable applying daily. If you’re active or sweating, go for a water-resistant option.
Sunscreen isn’t just for sunny days or beach trips—it’s a daily essential for healthy skin. Incorporate it into your morning routine and reapply every two hours when spending time outdoors. Still unsure what’s right for you? Talk with your dermatologist for personalized recommendations.
- Lori Fiessinger, MD, FAAD