Are UV filter chemicals in sunscreen safe to use on children?
Caution. Chemical UV filters absorb through skin into the bloodstream. Prenatal exposure to these chemicals is linked to lower cognitive scores and behavioral differences in young children.
What's actually in it
Most conventional sunscreens use chemical UV filters: oxybenzone, octinoxate, avobenzone, and octisalate are the most common. Unlike mineral sunscreens that sit on top of skin, these chemicals absorb into skin and enter the bloodstream.
The FDA found oxybenzone detectable in blood after just one application. These chemicals are also endocrine disruptors, meaning they interfere with hormone signaling.
What the research says
A 2026 study in Environ Pollut followed children whose mothers had been exposed to UV filter chemicals during pregnancy. Kids with higher prenatal exposure scored differently on cognitive and neurobehavioral tests, with effects on memory, attention, and behavior.
The effects were dose-related: mothers with higher urinary levels of UV filters had children with larger developmental differences. The researchers used cord blood and urine samples to confirm the chemicals cross into fetal circulation.
For children and during pregnancy, mineral sunscreens with zinc oxide or titanium dioxide are the safer option. These sit on top of the skin and don't absorb into the body.
The research at a glance
| Study | Journal | Year |
|---|---|---|
| Prenatal exposure to ultraviolet filters and children's cognitive and neurobehavioral development: A longitudinal study | Environ Pollut | 2026 |
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