Sunscreen is the easiest habit for protecting your skin. Here are the basics, simplified.
What SPF means
SPF (sun protection factor) measures protection from UVB rays, the main cause of sunburn. The American Academy of Dermatology recommends SPF 30 or higher.
Why "broad spectrum" matters
UVA rays reach deeper into skin and contribute to skin aging and skin cancer. A broad spectrum label means the sunscreen protects against both UVA and UVB.
Mineral vs. chemical
Mineral sunscreens use zinc oxide or titanium dioxide. Chemical sunscreens use filters that absorb UV. The best one is the one you'll actually wear every day.
How much
Most people use too little. For your body, dermatologists suggest about one ounce (roughly a shot glass). Don't forget ears, neck, the tops of your feet and your hairline.
When to reapply
- At least every two hours outdoors
- After swimming or sweating, per the label's water-resistance time
Spray tan ≠ sunscreen
A spray tan changes your skin's color, but it doesn't protect you from UV. Glow on the outside, sunscreen underneath.
This article is for general information, not medical advice. Talk to a dermatologist about your skin.
Practice Safe Sun.
