Mosquito Repellent and Pregnancy: What the CDC Actually Says
The CDC's guidance is direct: "When used as directed, EPA-registered insect repellents are proven safe and effective, even for pregnant and breastfeeding women." The registered actives it lists include DEET, picaridin, IR3535 and oil of lemon eucalyptus. Look for an EPA registration number on the label, follow the directions, and talk to your clinician about your situation.
Pregnancy turns every product label into a research project, and repellent is one where skipping it carries its own risk: mosquito bites are not just an itch, they are how several diseases travel. So this page does one thing: it lays out, verbatim, what the CDC and EPA actually say about repellent use in pregnancy, with nothing added.
What does the CDC say about repellents in pregnancy?
The clearest sentence in this whole subject sits in the CDC's mosquito prevention guidance: "When used as directed, EPA-registered insect repellents are proven safe and effective, even for pregnant and breastfeeding women."
Two parts of that sentence carry the weight. "EPA-registered": the products covered by the statement are the ones that have been through federal registration, and the CDC says to look for an EPA registration number (EPA Reg. No.) on the product label. "When used as directed": the reassurance is conditional on following the label, which is also EPA's standing rule for every pesticide product: "always read the product label before using the product."
Which active ingredients does the CDC list?
The same guidance lists the registered active ingredients to look for:
- DEET
- Picaridin (known as KBR 3023 and icaridin outside the United States)
- IR3535
- Oil of lemon eucalyptus (OLE), a plant-derived ingredient
- Para-menthane-diol (PMD)
- 2-undecanone, a plant-derived ingredient
On picaridin, since it is the one we know best: the National Pesticide Information Center describes it as a synthetic compound made to resemble piperine, the natural compound found in the group of plants used to produce black pepper, and states that it repels insects, ticks and chiggers.
How should you apply repellent while pregnant?
The application rules are the same ones EPA gives everyone, and they are worth following precisely because the CDC's safety statement is tied to them:
- Read and follow the label directions, and be sure you understand how much to apply.
- Apply only to exposed skin and/or clothing. Do not use under clothing.
- Keep it away from eyes and mouth and apply sparingly around ears. With sprays, spray your hands first, then apply to your face.
- Never apply over cuts, wounds, or irritated skin. Pregnancy makes some skin more reactive than usual; this rule is easy to forget on a scraped ankle and worth remembering.
- Wash treated skin and clothes with soap and water after returning indoors.
If you are also caring for small children, EPA's rule for them: do not apply repellent to children's hands; apply it to your own hands first, then put it on the child.
What else does the CDC recommend besides repellent?
The registration number is worth a sentence of its own, because it is the difference between the two kinds of products on the shelf. A repellent with an EPA Reg. No. on its label has been through federal registration, and that number is what connects the bottle in your hand to the CDC's sentence above. A citronella candle or an essential-oil bracelet has no such number, and no such sentence. The CDC's guidance points you to the registered aisle.
Repellent is one line in the CDC's four-part prevention list: use EPA-registered insect repellents, wear loose-fitting long-sleeved shirts and pants, wear clothing and gear treated with permethrin, and control mosquitoes indoors and outdoors. The clothing line matters in pregnancy for a simple reason: fabric is protection with no application questions at all, and pairing it with repellent on the skin that stays exposed is the full CDC picture.
If you want to compare specific registered products, EPA's search tool lets you filter by protection time and active ingredient, and our Repellent Index lets you compare all 631 registered skin repellents by what their federal labels actually claim.
The part that belongs to your clinician
This page reports what the agencies publish for the general case. Your pregnancy is a specific case. Bring the repellent question to your OB, midwife or family doctor, especially if travel to an area with mosquito-borne disease is on your calendar; they can weigh your destination, trimester and history in a way no label or blog post can.
Longsleeve is an EPA-registered picaridin lotion (EPA Reg. No. 101457-1). It repels mosquitoes and ticks for up to 14 hours, and its accepted federal label also carries the claim "Repels biting flies, stable flies, black flies, gnats, chiggers, sand flies and Scottish biting midges (no see-ums) for up to 8 hours." It is fragrance-free, with nine disclosed ingredients, every one listed on the ingredients page.
Short answers
Is insect repellent safe during pregnancy?
The CDC's statement: when used as directed, EPA-registered insect repellents are proven safe and effective, even for pregnant and breastfeeding women. The conditions are the substance: EPA-registered products, used as the label directs. For your individual situation, ask your clinician.
Is picaridin okay to use while pregnant?
Picaridin is on the CDC's list of EPA-registered active ingredients covered by its guidance for pregnant and breastfeeding women. NPIC describes it as a synthetic compound made to resemble piperine from the plants used to produce black pepper. As with any repellent in pregnancy, use it as the label directs and raise it with your clinician.
Is DEET safe in pregnancy?
The CDC's list of registered actives covered by its pregnancy guidance includes DEET, alongside picaridin and the others above. The CDC's condition applies across the whole list: used as directed, per the product label.
Which repellent does the CDC recommend most for pregnancy?
The CDC does not single one out. Its guidance covers the class: EPA-registered repellents with the listed actives (DEET, picaridin, IR3535, OLE, PMD, 2-undecanone), used as directed. The choice within that list is yours and your clinician's; the registration number and the label directions are the non-negotiable parts.
What about breastfeeding?
The CDC's sentence covers it explicitly: EPA-registered repellents used as directed are proven safe and effective "even for pregnant and breastfeeding women." EPA's general rule to wash treated skin after coming indoors applies as usual.
Sources
- CDC, Preventing Mosquito Bites. https://www.cdc.gov/mosquitoes/prevention/index.html
- EPA, Using Insect Repellents Safely and Effectively. https://www.epa.gov/insect-repellents/using-insect-repellents-safely-and-effectively
- EPA, Find the Repellent that is Right for You. https://www.epa.gov/insect-repellents/find-repellent-right-you
- NPIC, Picaridin General Fact Sheet. https://npic.orst.edu/factsheets/PicaridinGen.html
Last reviewed 2026-08-26 · every claim on this page is sourced above