The five measures, and why they work together
Slip, Slop, Slap, Seek, Slide. Cancer Council Australia built this five-part system decades ago, and it still holds up because it doesn't rely on any single measure carrying the whole job. Slip on clothing, slop on sunscreen, slap on a hat, seek shade, slide on sunglasses.
Sunscreen is deliberately just one of the five. For the youngest babies, it isn't even the first one families should reach for.
Clothing
UPF ratings measure how much UV radiation a fabric blocks, and higher is better, but coverage matters just as much as the number on the tag. A UPF50 rated singlet covering only the torso does less than a lower-rated long-sleeve top covering arms and shoulders too.
For hot weather, lightweight long-sleeve rash tops and looser woven fabrics tend to work better than trying to find the highest possible UPF number in something that overheats a toddler within twenty minutes.
Hats
Broad-brim hats beat legionnaire styles, and legionnaire styles beat caps, in terms of actual coverage. A cap protects the scalp and not much else, leaving ears, neck, and cheeks exposed to exactly the kind of incidental sun a day at the park delivers in small doses all afternoon.
Toddler hat-refusal is its own particular battle. Letting them choose the hat themselves, starting the habit indoors before you're already out the door, and having a spare in the bag for the inevitable moment the first one goes flying all help more than any single trick on its own.
Shade
Natural shade from trees is genuinely effective, but it moves throughout the day, so it needs checking rather than assuming. Pram covers and portable beach shelters fill the gap when natural shade isn't reliably available, and both are worth having as standard kit for any outdoor outing with a baby.
For babies under six months, shade comes first. Sunscreen use for this age group is generally limited, and shade, clothing, and timing outings around peak UV hours do most of the protective work instead.
Sunglasses
Sunglasses matter more than they're usually given credit for, particularly for young children whose eyes are still developing. Look for the AS/NZS 1067 standard on the label, which confirms the lenses meet the Australian requirement for UV protection rather than just looking the part.
Where sunscreen fits
Sunscreen still matters, specifically on the skin that clothing, hats, and shade don't cover: face, ears, and the backs of hands. From six months, per Australian guidance, sunscreen becomes part of the regular routine on these exposed areas. The full guidance on when babies can wear sunscreen is here.
Lullaby's SPF50+ Sensitive Skin Sunscreen is gentle enough for babies, made for the whole family, which means the same tube that covers a six-month-old's cheeks also works for the rest of the family at the same beach or the same backyard. Reapply every 2 hours and after swimming or towelling, same rule as always, on top of whichever of the other four measures you've already got covered.
FAQ
Do babies under 6 months need sunscreen?
Generally, shade, clothing, and careful timing around peak UV hours are the priority for babies under six months, rather than sunscreen. Keeping infants out of direct sun and in shade is the recommended first line of protection at this age.
What should babies wear in the sun?
Lightweight, long-sleeved clothing with good coverage, a broad-brim hat rather than a cap, and sunglasses that meet the AS/NZS 1067 standard all do heavy lifting alongside shade and sunscreen.
Is sunscreen enough on its own?
No. Sunscreen is one of five recommended sun protection measures, alongside clothing, a hat, shade, and sunglasses. Using all five together, per Cancer Council guidance, gives far more reliable protection than sunscreen alone.