Safe insect repellent for 8 month old baby?
For an 8-month-old, Health Canada-approved options include a repellent with 10% or less DEET (used once a day) or icaridin/picaridin, plus mosquito netting over the stroller or carrier as the main line of defence.
Products with oil of lemon eucalyptus (PMD) are not recommended before age 3, and permethrin should never go directly on skin.
Good
Based on Health Canada regulatory guidance and Canadian Paediatric Society parent handouts, which reflect Health Canada's Pest Management Regulatory Agency safety reviews rather than a randomized trial, plus a peer-reviewed CMAJ safety review.
What the evidence says
Your baby is past the strictest cutoff: Health Canada says no DEET-containing repellent under 6 months, and physical protection (mosquito netting over the stroller or carrier) should be used instead at that age. At 8 months, a repellent with 10% or less DEET can be considered, applied no more than once a day, kept off the hands and face, and washed off when you're back inside. Icaridin (also called picaridin) is another Health Canada-approved option for this age and works similarly to DEET without the smell or stickiness.
Soybean oil-based repellents have no age restriction and are considered safe for infants, though they protect for a shorter time. Avoid products containing oil of lemon eucalyptus or PMD, citronella, or combined sunscreen-repellent products for a child this young; none of these are recommended before age 3, and citronella's effectiveness and safety data are considered insufficient by Health Canada. Permethrin should never be applied to skin - it's for treating clothing, and pre-treated garments aren't approved for children under 16 in Canada.
Whichever product you choose, look for a Health Canada Pest Control Product (PCP) number on the label, apply it lightly to exposed skin only, and wash it off with soap and water once you're indoors.
Sources
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Guideline
Personal Insect repellents
Health Canada, 2024
Official Health Canada rules on DEET, icaridin, PMD, permethrin by age.
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Guideline
Insect repellents: How to protect your child from insect bites
Canadian Paediatric Society (Caring for Kids), 2024
Parent-facing CPS guidance on DEET/icaridin concentrations and safe use.
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Guideline
Insect repellents and DEET
HealthLink BC, 2023
Age-specific DEET dosing, including 6 months-2 years guidance.
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Guideline
Insect bites
AboutKidsHealth (SickKids), 2024
Summarizes Health Canada age limits for DEET and icaridin.
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Guideline
Insect Repellents
American Academy of Pediatrics, 2024
US guidance for comparison; AAP caps DEET at 30% for kids.
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Systematic review
DEET-based insect repellents: safety implications for children and pregnant and lactating women
CMAJ, 2003
Peer-reviewed CPS-linked review finding no increased risk in young children.
✓Reviewed by CH, MD, FRCPC
Reviewed by a specialist physician certified by the Royal College of Physicians and Surgeons of Canada, who has read this answer against the sources listed above and confirmed it reflects them. That is not medical advice about your child. How we review
Answer checked August 2, 2026