Baby Sunscreen Guide: What's Safe and When to Start
Sun protection for babies is confusing because the rules change based on age. Under 6 months, avoid sunscreen. Over 6 months, use it every time you're outside. But which kind? How much? What about the ingredient debates? Here's the straightforward guide.
Under 6 Months: No Sunscreen
The AAP and FDA recommend keeping babies under 6 months out of direct sunlight rather than using sunscreen. Their skin is too thin and sensitive, and they absorb chemicals more readily than older babies. Instead, keep them in shade, use a stroller canopy, dress them in lightweight long sleeves, and put a wide-brimmed hat on them.
If you absolutely can't avoid some sun exposure (outdoor family event, for example), the AAP says a small amount of sunscreen on exposed areas like hands and face is okay. But shade and clothing should be the first defense.
6+ Months: Sunscreen Rules
**Mineral (physical) sunscreen only for babies.** Look for zinc oxide or titanium dioxide as the active ingredients. These sit on top of the skin and physically block UV rays rather than being absorbed. Chemical sunscreens (oxybenzone, avobenzone, octinoxate) are absorbed into the skin and there are ongoing questions about their safety for babies.
**SPF 30 to 50.** SPF 30 blocks about 97% of UVB rays. SPF 50 blocks about 98%. Anything above 50 is marginal improvement and often just marketing. SPF 30 is perfectly fine for babies.
**Broad spectrum.** This means it protects against both UVA (aging, deeper skin damage) and UVB (burning) rays. Always check for this on the label.
**Water resistant.** Babies drool, sweat, and get wet. Water-resistant formulas last 40 to 80 minutes during water exposure. Reapply after toweling off.
How to Apply
**Apply 15 minutes before going outside** so it has time to form a protective layer. Cover all exposed skin including ears, back of the neck, tops of feet, and the backs of hands. Use about a nickel-sized amount for the face and a shot glass worth for the body. Reapply every 2 hours, or immediately after swimming or heavy sweating.
**For the face,** a sunscreen stick is easier than lotion because you can apply precisely without getting it in baby's eyes. Just draw it on like a crayon and rub it in gently.
Our Product Picks
**Thinkbaby SPF 50 ($12)** is consistently rated as one of the safest and most effective baby sunscreens. Zinc oxide based, no harmful additives, and it rubs in better than most mineral sunscreens. It does leave a slight white cast but that's true of all zinc oxide products.
**Babyganics SPF 50 ($10)** is another popular mineral option. It's lightweight and less chalky than some zinc oxide formulas. Good for daily use.
**Blue Lizard Baby SPF 50 ($15)** uses zinc oxide and titanium dioxide. The bottle cap turns blue in UV light, which is a clever reminder to apply. It's thick and definitely leaves a white cast, but the protection is excellent.
**For sunscreen sticks,** the Badger Baby SPF 40 stick ($10) is great for faces. Easy to apply, no mess, and it uses simple ingredients.
Sun Hats That Stay On
A hat only works if baby keeps it on. UPF 50+ hats with a chin strap are your best bet. The i play by Green Sprouts Sun Hat ($12) has a wide brim, UPF 50+ fabric, a chin strap with breakaway snap (safety feature), and a toggle to tighten. It's the most popular baby sun hat for good reason.
Common Mistakes
**Not applying enough.** Most people use about half the amount of sunscreen they should. Don't be stingy. A thick, visible layer is correct.
**Skipping cloudy days.** Up to 80% of UV rays penetrate clouds. If baby is outside, they need protection even on overcast days.
**Relying only on sunscreen.** Sunscreen is the last layer of defense, not the first. Shade, sun-protective clothing (UPF 50+), and hats should come first. Sunscreen covers whatever's left exposed.
**Forgetting reapplication.** Two hours. Set a phone alarm if you need to. One application in the morning doesn't last through an afternoon at the park.