Sunscreen Smarts: More Than Just a High SPF

Navigating the sunscreen aisle can feel overwhelming. With so many options, how do you choose the right one? Protecting your skin from the sun is one of the best things you can do for your long-term health. The good news is that it's simpler than it seems. By understanding a couple of common misconceptions, you can make smarter choices for yourself and your family.

The High SPF Myth

A common pitfall is thinking that a higher Sun Protection Factor (SPF) number automatically means better protection. Many people reach for SPF 100+, believing it offers nearly perfect coverage.

What SPF numbers do—and don’t tell you

Myth

A very high SPF number means nearly complete sun protection.

Reality

SPF mainly measures UVB protection. For fuller protection, the label also needs to say broad-spectrum so it covers both UVA and UVB rays.

Chemical vs. Mineral Sunscreens

Another point of confusion is the type of sunscreen. It's a mistake to assume they all work the same way. There are two main categories: chemical and mineral.

Chemical and mineral sunscreens at a glance

Type	How it works	Key notes
Chemical sunscreen	Absorbed into the skin and converts UV light into heat	Some ingredients, such as oxybenzone, are under review for bloodstream absorption
Mineral sunscreen	Sits on the skin’s surface and acts as a physical barrier that deflects rays	Uses zinc oxide or titanium dioxide, is generally considered safe and effective, and is often better for sensitive skin

Why does this matter? Some ingredients in chemical sunscreens are under review for being absorbed into the bloodstream. Mineral sunscreens, on the other hand, are generally considered safe and effective, with zinc oxide and titanium dioxide being the only two sunscreen ingredients with that designation from the FDA. They are also often a better choice for people with sensitive skin.

Your Simple Sunscreen Action Plan

Ready to put this knowledge into practice? Here is a straightforward guide to choosing and using sunscreen effectively.

A practical sunscreen routine

1

Choose mineral and broad-spectrum

Look for zinc oxide or titanium dioxide as the active ingredient, and make sure the label says broad-spectrum.

2

Stay in the SPF 30–50 range

For most people, SPF 30 to 50 provides strong protection, with little extra benefit from much higher numbers.

3

Apply enough and reapply regularly

Use about one ounce for the whole body and reapply every two hours, or sooner after swimming or heavy sweating.

4

Use other sun protection too

Add protective clothing, a wide-brimmed hat, sunglasses, and shade—especially between 10 a.m. and 4 p.m.

By following these simple steps, you can confidently enjoy the outdoors while keeping your skin healthy and protected.