Is it safe to use DEET on a baby under 2 months?
No. Do not put DEET or other skin repellents on a baby under 2 months.
What's actually in it
DEET is an active ingredient in many mosquito and tick repellents. It can be useful for older babies and kids when used correctly, but a baby under 2 months is different.
Newborn skin is still developing. Babies also put hands near their mouth and eyes. At this age, the safer first move is a physical barrier, not a chemical repellent on skin.
What the research says
The NCBI Bookshelf toxicological profile for DEET says AAP recommends no repellents for infants below 2 months and says CDC concurs with that use profile.
CDC mosquito-bite guidance tells caregivers to dress children in clothing that covers arms and legs and to cover strollers and baby carriers with mosquito netting.
For a baby under 2 months, use long sleeves, socks, stroller netting, window screens, and fans. Avoid peak mosquito times when you can. If mosquito-borne illness is a real local risk, ask the pediatrician what to do for your area.
The research at a glance
| Study | Journal | Year |
|---|---|---|
| Potential for Human Exposure - Toxicological Profile for DEET (N,N-DIETHYL-META-TOLUAMIDE) | NCBI Bookshelf | |
| Preventing Mosquito Bites | CDC |