Daily sunscreen is one of the most effective things you can do for your skin — it lowers the risk of skin cancer and slows visible aging. Here are the questions I am asked most often.

SPF 30 or SPF 50?

SPF 30 blocks about 97% of UVB rays; SPF 50 blocks about 98%. More important than the number: apply enough (about a teaspoon for your face and neck) and reapply every two hours outdoors.

Mineral or chemical?

Both work. Mineral sunscreens (zinc oxide, titanium dioxide) suit sensitive skin; chemical filters often feel lighter. The best sunscreen is the one you will actually wear.

Do I need it on cloudy days?

Yes. Up to 80% of UV rays pass through clouds.

And for darker skin?

Darker skin has more natural protection but still burns and still develops skin cancer, often found later. Daily SPF is recommended for everyone.

Your skin tells a story. A yearly skin check makes sure it is a good one.