Sunscreen for Babies Under 6 Months
The short answer
The AAP recommends avoiding sunscreen on babies under 6 months when possible, as their skin is thinner and absorbs chemicals more readily. The primary protection should be shade and protective clothing (long sleeves, wide-brimmed hat, UV-protective fabric). However, if shade and clothing are not available and sun exposure cannot be avoided, a small amount of mineral sunscreen (zinc oxide or titanium dioxide) on exposed areas is considered safe and is preferable to sunburn.
By Age
What to expect by age
Keep newborns out of direct sunlight entirely. Their skin is extremely thin and burns easily. Use shade from stroller canopies, umbrellas, and trees. Dress them in lightweight, long-sleeved clothing and a hat. If brief unavoidable sun exposure occurs, apply a small amount of mineral sunscreen (zinc oxide) to the face and backs of hands.
Continue to prioritize shade and protective clothing. The AAP guidance remains to avoid regular sunscreen use before 6 months, but mineral sunscreen is acceptable when needed. Avoid the sun during peak UV hours (10 AM to 4 PM). If your baby gets pink or red skin from sun exposure, they have been sunburned and need immediate shade and cool compresses.
From 6 months, sunscreen use is recommended for all sun exposure. Use a broad-spectrum SPF 30 or higher, preferably mineral-based (zinc oxide or titanium dioxide). Apply 15-30 minutes before sun exposure and reapply every 2 hours or after water exposure. Continue using shade, hats, and protective clothing as the primary defense.
Apply sunscreen generously to all exposed skin. Toddlers need about 1 ounce (shot glass full) for full body coverage. Use water-resistant formulas for pool or beach time. Reapply every 2 hours and after swimming or sweating. Rash guards and sun hats remain valuable supplements to sunscreen.
What Should You Do?
When to take action
- You use shade and clothing as primary sun protection for your young baby and sunscreen only on unavoidable exposed areas
- Your baby's skin shows no reaction to mineral sunscreen application
- You apply sunscreen regularly to your 6+ month old baby before outdoor activities
- You avoid peak sun hours with your young baby
- Your baby under 6 months got a sunburn — even mild sunburn in young babies should be evaluated by your pediatrician
- Your baby develops a rash or allergic reaction to sunscreen
- Your baby has very fair skin and you are concerned about adequate sun protection despite taking precautions
- Your baby has a severe sunburn with blistering, fever, or significant distress — seek medical attention immediately
- Your baby shows signs of heat-related illness (excessive fussiness, dry mouth, no tears, decreased wet diapers) after sun exposure — this may indicate dehydration or heat illness
Sources
Related Resources
Related Skin Concerns
Beach Safety for Babies and Toddlers
Beaches can be wonderful for families but present several hazards for babies and toddlers including sun exposure, heat, water dangers, sand ingestion, and jellyfish or shells. Babies under 6 months should be kept out of direct sunlight entirely. All children need shade, hydration, and constant supervision near water. Even shallow water and small waves can be dangerous for babies and toddlers. Sand-eating in small amounts is not harmful but should be discouraged.
Extreme Heat Safety for Babies
Babies are at higher risk of heat-related illness because they cannot regulate their body temperature as effectively as adults, they rely on caregivers to keep them hydrated, and they cannot remove their own clothing. The AAP recommends avoiding outdoor activities when the heat index exceeds 90°F (32°C) for prolonged periods. Keep babies hydrated with extra feedings, dress them in light clothing, and seek shade and air conditioning. Never leave a child unattended in a car — car interior temperatures can become lethal in minutes, even with windows cracked.
Insect Repellent Safety for Babies
The AAP and EPA recommend against using any insect repellent on babies under 2 months of age. For babies 2 months and older, products containing up to 30% DEET or 20% picaridin are considered safe and effective. Oil of lemon eucalyptus should not be used on children under 3 years. For young babies, physical barriers (mosquito nets, long sleeves, screens) are the safest option. Apply repellent to clothing rather than skin when possible, and never apply to hands, eyes, or mouth.
Baby Acne (Neonatal Acne)
Baby acne is a very common, harmless condition that appears as small red or white bumps on your newborn's face, usually around 2-4 weeks of age. It is caused by maternal hormones still circulating in your baby's system and clears up on its own within a few weeks to months without any treatment.
Baby Blister on Lip from Nursing
A nursing blister (also called a suck callus) is a small, painless blister or thickened patch on your baby's upper lip caused by the friction of latching during breastfeeding or bottle feeding. It is completely harmless, does not hurt your baby, and does not need any treatment. These are very common in newborns and typically come and go in the early weeks.
Blisters on Baby's Skin - Causes and When to Worry
Blisters on a baby's skin can have many causes ranging from harmless (sucking blisters, friction blisters) to conditions requiring medical attention (burns, infections like hand-foot-and-mouth disease, impetigo, or herpes). A single blister on a newborn's lip or hand from sucking is very common and harmless. Multiple blisters, blisters with fever, blisters that spread rapidly, or blisters in a newborn under 1 month should be evaluated by a doctor.