Key Takeaway
Under 6 months, shade, clothing, and hats come before sunscreen — apply a small amount only to a small exposed area like the face when there's no way to cover up. After 6 months, keep clothing and hats as the baseline, and apply a broad-spectrum sunscreen based on zinc oxide or titanium dioxide to exposed areas.
- The American Academy of Dermatology (AAD) recommends SPF 30 or higher, broad-spectrum, water-resistant sunscreen
- Apply 15–30 minutes before heading out, then reapply every 2 hours and right away after swimming, sweating, or towel-drying
- Keep kids in the shade during peak UV hours, 10 a.m. to 4 p.m.
Kids' skin is more sensitive than adults', so how you protect it from UV changes with age. SKINROUTE breaks down how to pick and apply sunscreen for babies and kids, based on guidance from the American Academy of Dermatology (AAD) and the American Academy of Pediatrics (AAP).
What Age Can Kids Start Wearing Sunscreen?
The AAD and AAP share the same cutoff: 6 months old.
Under 6 months
At this age, avoiding direct sunlight comes before sunscreen. Keep your baby in the shade as much as possible, and use a parasol or stroller canopy to create shade when none is available. Cover up with lightweight long sleeves and pants, a wide-brimmed hat, and UV-protective sunglasses.
Only apply a small amount of sunscreen to a small area like the face when shade and clothing can't fully cover them. If your baby is fussy or crying hard, or exposed skin turns red, head indoors right away. If you're unsure whether to use sunscreen on your baby, talk to a pediatrician.
After 6 months
Keep clothing, hats, and shade as the baseline, and add sunscreen on areas clothing can't cover, like the face, neck, the backs of hands, and legs.
Under 6 Months vs. After 6 Months
| Under 6 Months | After 6 Months | |
|---|---|---|
| Baseline | Shade, clothing, and hats to avoid direct sun | Clothing, hats, shade + sunscreen |
| Sunscreen | A small amount on a small area, only when there's no way to cover up | Applied generously to exposed areas |
| What to choose | Zinc oxide- or titanium dioxide-based | Zinc oxide- or titanium dioxide-based, broad-spectrum |
| Reapplication | Every 2 hours, right away after swimming or sweating | Every 2 hours, right away after swimming, sweating, or towel-drying |
What to Look for in a Kids' Sunscreen
Zinc oxide- or titanium dioxide-based
The AAD notes that a sunscreen containing zinc oxide or titanium dioxide is more likely to be gentle on a baby's sensitive skin. The AAP also recommends sunscreens with these two ingredients for sensitive areas like the nose, cheeks, tops of the ears, and shoulders. These products are commonly called mineral sunscreens. The difference between mineral and chemical filters is covered in Chemical vs. Mineral Sunscreen
SPF and broad-spectrum protection
The AAD recommends broad-spectrum, water-resistant sunscreen with SPF 30 or higher. The AAP recommends broad-spectrum sunscreen with SPF 15 to 50. Combining the two, a broad-spectrum product between SPF 30 and 50 works well.
Ingredients to avoid
The AAP advises avoiding oxybenzone due to mild hormone-related concerns. Fragrance can irritate sensitive skin, so a fragrance-free product is a better choice. Check the ingredient list rather than relying on a "for kids" label.
Kids' Sunscreen Checklist
- Broad-spectrum protection
- SPF 30–50
- Zinc oxide- or titanium dioxide-based
- Water-resistant label
- No oxybenzone on the ingredient list
- Fragrance-free
How to Apply Kids' Sunscreen
The AAP advises applying sunscreen 15–30 minutes before heading outside, then reapplying every 2 hours and again after swimming, sweating, or towel-drying.
The Order for Applying Kids' Sunscreen
- 15–30 minutes before heading out — Apply ahead of time, before you go outside
- Cover every exposed area — Nose, cheeks, tops of the ears, back of the neck, shoulders, tops of feet
- Reapply every 2 hours — Set a timer while you're out
- Right after swimming or sweating — Reapply again even after towel-drying
- Cleanse gently at home — Warm water, no rubbing — be gentle
If it's a new product
For a new sunscreen, testing a small area first before applying it broadly gives you peace of mind. The AAD's method is to apply a coin-sized amount to the inner arm twice a day for 7–10 days. If there's no redness or itching, try it on the face too. Testing ahead of summer makes things easier.
Extra Tips for Water Play and Summer
The AAD notes that there's no such thing as a fully "waterproof" sunscreen. Even a water-resistant product needs to be reapplied right after swimming or sweating. The AAP recommends limiting time in direct sun during peak UV hours, 10 a.m. to 4 p.m. For tips on reapplying while out, see The Complete Guide to Reapplying Sunscreen
Summer Sun Protection for Kids — Do This, Avoid That
✓ Do
- Cover up with clothing, a wide-brimmed hat, and UV-protective sunglasses
- Rest in the shade from 10 a.m. to 4 p.m.
- Reapply right after swimming or sweating
- Head indoors right away if they're fussy or skin turns red
✕ Avoid
- Putting a baby under 6 months in direct sunlight
- Skipping reapplication just because it says "waterproof"
- Long stretches of play in midday sun
- Skipping sunscreen because it's cloudy
When Kids Don't Want to Wear Sunscreen
Kids often resist sunscreen because of how sticky or heavy it feels. Try these tricks to make it easier.
- Turn it into a game: Dot it on cheeks, forehead, and nose and spread it together playfully
- A lighter texture: Switch to a light lotion or a stick
- Lead by example: Let them watch a caregiver apply it first, and they'll often follow along
- Cover less skin: Cover what you can with clothing and a hat, and only apply to exposed areas to save time
Frequently Asked Questions
Can I use adult sunscreen on my kid?
Ingredients and protection standards matter more than a "for kids" label. Check the ingredient list for broad-spectrum protection, SPF 30 or higher, a zinc oxide or titanium dioxide base, and no oxybenzone or fragrance.
Does a baby under 6 months need sunscreen?
At this age, avoiding sun exposure with shade, clothing, and hats comes first. Only apply a small amount to a small area like the face when there's no way to cover up, and talk to a pediatrician if you're unsure.
Is a higher SPF always better for kids?
No. The AAD recommends SPF 30 or higher, while the AAP recommends SPF 15 to 50. Applying enough and reapplying every 2 hours matters more than the number itself.
Should kids wear sunscreen on cloudy days too?
Yes, if they're playing outside. The AAP notes that UV rays pass through clouds and can still cause sunburn even on overcast days.
If it's waterproof, can I skip reapplying during water play?
No, reapply anyway. There's no sunscreen that's fully waterproof, so reapply right after swimming or towel-drying.
Check Your Family's Sun Protection Habits
While you're handling your kid's sunscreen, it's worth checking your own sun protection habits too. SKIN100 Precision Skin Analysis uses over 100 survey questions to analyze 8 core factors — lifestyle habits, skincare habits, external environment, and more — to point you toward the right sun protection habits for your skin. Your AI coach guides you through the texture and routine to match your results.