Sun protection for children: 7 common mistakes and how to avoid them

Summer Arrives Full of Sunshine, Outdoor Play, and Endless Days at the Beach or Pool

For families with young children, this time of year means fun—but also risks if children’s skin isn’t properly protected.

Children’s skin is much thinner, more delicate, and more vulnerable than that of adults. According to the Spanish Association of Pediatrics, 80% of lifetime sun exposure occurs before the age of 18. That’s why sun protection during childhood isn’t just a cosmetic concern—it’s a long-term health measure.

Below, we go through the most common mistakes families make in summer and how to avoid them so your kids can enjoy the sun safely.

Mistake 1: Using Any Sunscreen Without Checking the Label

Not all sunscreens are the same—and even less so for children. One of the most common mistakes is using the same sunscreen for the whole family.

What should you look for in children’s sunscreen?

• SPF 50+ (high protection)

• Special formulas for sensitive or atopic skin

• Broad-spectrum protection against UVA and UVB rays

• Physical or mineral filters (zinc oxide or titanium dioxide), especially for babies under 2 years old

• Water-resistant texture and no added fragrances

Mistake 2: Applying Sunscreen Too Late or Only Once a Day

Many families apply sunscreen right when they’re already on the towel—or even with their feet in the water—but this greatly reduces its effectiveness.

The right way: Apply sunscreen 30 minutes before sun exposure and reapply every 2 hours, or sooner if your child has been swimming or sweating heavily. Even water-resistant formulas lose effectiveness over time.

Mistake 3: Thinking Sunscreen Alone Is Enough

Sunscreen isn’t an invincible shield. It should be part of a broader set of protective measures:

• Avoid the sun between 12:00 p.m. and 5:00 p.m.

• Wear lightweight long-sleeved clothing, certified sunglasses, and a wide-brimmed hat

• Prioritize shaded areas or bring an umbrella

• Stay well hydrated with water and fresh fruits

Mistake 4: Exposing Babies Under 6 Months to Direct Sunlight

Pediatricians agree: babies under 6 months should not be exposed to direct sunlight, not even with sunscreen.

Their skin has not yet developed the necessary defenses to withstand ultraviolet radiation. In these cases, the best protection is:

• Keeping them in the shade

• Dressing them in breathable, light-colored clothing that covers their skin well

• Using a canopy, umbrella, or sunshade if they’re in a stroller

• Avoiding sunscreen use unless recommended by a doctor

Mistake 5: Not Applying Enough Sunscreen

Another classic mistake: applying too little sunscreen. Studies show that, on average, we use only 25–50% of the recommended amount.

Guideline amount:

• Young children: one teaspoon per area (face, arm, leg, etc.)

• Cover all areas well: ears, nape of the neck, tops of feet, backs of knees, and the swimsuit line

Mistake 6: Reusing Last Year’s Sunscreen Without Checking It

Sunscreen products have expiration dates, and once opened, they lose effectiveness over time—especially if exposed to heat.

Always check:

• The expiration date

• The PAO (Period After Opening) symbol indicating how many months it lasts once opened

• Any changes in color, texture, or smell—if any of these have changed, it’s safer to throw it out

Mistake 7: Thinking Sunscreen Isn’t Needed on Cloudy Days or Once Skin Has a Tan

Clouds don’t block UV rays, and water, sand, and snow reflect even more radiation.

Also, having tanned skin does not mean it’s protected. A tan is already a sign that the body is responding to sun damage.

In Summary: Key Tips for Effective Sun Protection for Children

Expert Advice

“Childhood is when we need to protect the skin the most. A single episode of sunburn in a child doubles the risk of skin cancer in adulthood.”
— Dr. Núria Llompart, Pediatric Dermatologist

Conclusion

Protecting our children’s skin isn’t just an act of care—it’s an investment in lifelong health. Summer can—and should—be enjoyed to the fullest, but always with awareness, responsibility, and good habits.

If you found this article helpful, share it with other families and help us create a safer summer for all children.