How to Choose the Best Sunblock for You
Choosing the right sunblock is essential for protecting your skin from harmful ultraviolet (UV) rays and preventing skin cancer, premature aging, and sunburn. Below is a compiled guide with key considerations to help people decide which sunblock is best for them.
But First: Why Is Wearing Sunblock So Important?
Sunblock isn’t just for the beach or sunny days—it’s a daily essential for skin health and overall well-being. Here’s why:
1. Protects Against Skin Cancer
Skin cancer is the most common cancer in the U.S.
The CDC and American Academy of Dermatology report that UV radiation is the leading cause of skin cancer.
Regular sunscreen use reduces the risk of melanoma and non-melanoma skin cancers, especially with early and consistent application.
2. Prevents Premature Aging
Up to 90% of visible skin aging is caused by sun exposure.
UVA rays penetrate deep into the skin, leading to wrinkles, sagging, and age spots.
Wearing sunblock helps maintain skin elasticity and youthful appearance.
3. Prevents Sunburns
Sunburns are more than uncomfortable—they’re signs of cellular damage.
Even one severe sunburn can double your risk of developing melanoma later in life.
Regular protection reduces inflammation, redness, and pain.
4. Protects Your Skin on a Cellular Level
UV rays damage DNA in skin cells.
This damage accumulates over time and increases the risk of mutations, pigmentation disorders, and immune suppression.
Sunscreen forms a barrier to block or absorb UV radiation, reducing this cellular harm.
5. Essential for All Skin Tones
People of all skin tones can develop skin cancer and suffer from sun damage.
Melanin provides some natural protection, but not enough to eliminate risk.
Sunscreen use helps even out skin tone and prevent hyperpigmentation, especially in darker complexions.
6. You’re Exposed Even on Cloudy or Indoor Days
Up to 80% of UV rays penetrate clouds.
UVA rays also pass through glass—meaning you're exposed during car rides or sitting near windows.
Daily sunscreen use is important, regardless of weather or location.
How to Choose the Best Sunblock for You
1. Understand SPF Ratings
SPF (Sun Protection Factor) measures protection against UVB rays (cause sunburn).
SPF 30: Blocks ~97% of UVB rays
SPF 50: Blocks ~98%
SPF 100: Blocks ~99%
Higher SPF may offer marginally more protection but must be reapplied regularly to be effective.
2. Look for Broad-Spectrum Protection
Broad-spectrum sunscreens protect against both UVA (aging, cancer) and UVB (burns) rays.
Always choose a broad-spectrum formula.
3. Consider the Active Ingredients
There are two main types:
Mineral (Physical) Sunscreens
Ingredients: Zinc oxide, titanium dioxide
Pros:
Gentle on sensitive skin
Start working immediately
Reef-safe
Best For: Sensitive skin, babies, people with rosacea or acne
Chemical Sunscreens
Ingredients: Avobenzone, oxybenzone, octinoxate, homosalate, etc.
Pros:
Typically more lightweight and transparent
Better for oily skin or under makeup
Cons:
May irritate sensitive skin
Some ingredients are banned in areas due to coral reef damage
4. Check Water Resistance
Water-resistant sunscreens are effective for 40 or 80 minutes of swimming/sweating.
Important for beachgoers, athletes, or people who sweat heavily.
5. Choose the Right Formula for Your Skin Type
Skin Type Recommended Type
Oily/Acne-prone - Oil-free, non-comedogenic, gel or water-based
Dry - Cream-based, moisturizing sunscreen
Sensitive - Mineral-based, fragrance-free
Dark skin tones - Tinted mineral sunscreen to prevent white cast
6. Application Method Preferences
Lotion/Creams: Best coverage and control
Sprays: Convenient, but require rubbing in; not recommended for windy days or kids’ faces
Sticks: Great for around the eyes or on-the-go touch-ups
7. Be Aware of Environmental Concerns
Choose reef-safe sunscreens (look for “oxybenzone-free” and “octinoxate-free”).
Hawaii and other places have banned some harmful ingredients.
8. Dermatologist Recommendations & Safety Labels
Look for sunscreens with:
“Dermatologist-tested”
“Non-comedogenic” for acne-prone skin
“Fragrance-free” for sensitive skin
9. Reapplication is Crucial
Apply 15–30 minutes before sun exposure
Reapply every 2 hours and after swimming/sweating
Top Tips for Daily Use
Use SPF 30 or higher daily, even when cloudy or indoors near windows.
Make it part of your morning routine, especially on exposed areas like face, neck, ears, and hands.
Use a separate facial sunscreen under makeup if desired.
Final Takeaway:
Sunscreen isn’t just about avoiding sunburn—it's one of the most effective anti-aging and anti-cancer tools available. Choosing the right product and using it correctly can protect your skin today and preserve its health and appearance for years to come.