Chigger Repellent: What to Look For, According to Public Health Guidance
Illinois DPH calls repellent the first line of defense against chiggers, naming 7 to 30 percent DEET; NPIC states picaridin repels insects, ticks and chiggers. Check the product's own federal label for a chigger claim: of 631 EPA-registered skin repellents, 77 state a chigger protection time.
Chiggers are the reason a July walk through tall grass can cost you a week of ankle-scratching. The good news is that this is a solved problem: public health guidance on chigger repellent is unusually specific, and the label on the bottle will tell you whether a product has registered a claim against them. Here is the whole picture.
What do the public health agencies actually recommend?
The Illinois Department of Public Health is as direct as guidance gets: for chiggers, "insect repellents containing 7 percent to 30 percent 'DEET' should be used as the first line of defense." That is the state-health-department baseline.
On the other widely used active, the National Pesticide Information Center opens its picaridin fact sheet with the pest list itself: "Picaridin repels insects, ticks and chiggers." Picaridin is a synthetic compound, made to resemble piperine, the natural compound found in the group of plants used to produce black pepper.
Either way, EPA's standing rule is the one to remember at the shelf: "always read the product label before using the product." A chigger claim is a registered, pest-specific statement, and the label is where it lives.
Why does the label matter so much for chiggers?
Because chiggers are mites, not insects. The CDC describes them as "larval mites," and a repellent label's claims are written pest by pest: a product that says "repels mosquitoes" has told you nothing about mites. Even EPA's consumer search tool only filters by mosquitoes, ticks or both, plus protection time and active ingredient, so chiggers never appear as a checkbox. The only place a chigger answer exists is the label itself.
That is a tedious thing to check across a store shelf, so we did it across the whole registry. The Repellent Index holds all 631 EPA-registered skin-applied repellents with the pest claims we could read off each product's federal label. Of those 631, 77 carry a stated chigger protection time. The full statistics and the dataset are free.
What does a chigger actually do, and why does repellent placement matter?
Illinois DPH's description of the attack is useful for aiming your repellent. Chiggers wait in soil and low vegetation, detect the carbon dioxide you exhale, climb up and grab on. They do not suck blood; they cut into skin, inject skin-digesting saliva, and if not dislodged will feed for several days, leaving a bite that becomes inflamed, hardens and itches.
They start at ground level, which means ankles, socks and lower legs are the front line. Chiggers live in cracks in the soil, typically in rural and less disturbed areas, though the department notes they can persist for years on soil in new subdivisions. If your yard used to be a field, assume the field's residents stayed.
EPA's application rules finish the job: read and follow the label directions, apply only to exposed skin and/or clothing, and never under clothing. For children, do not apply to their hands; apply to your own hands first, then put it on the child. When you come back in, wash treated skin and clothes with soap and water.
What works alongside repellent?
- The hot, soapy shower. Illinois DPH: take one "immediately after visiting natural areas where chiggers are present" to dislodge any chiggers that have attached. Because a chigger feeds for days if left alone, this one habit removes most of the damage even when the repellent missed a spot.
- Clothing as a barrier. The general biting-pest guidance from Illinois DPH pairs repellents with protective clothing: long sleeves, long pants, hats, and avoiding the areas and hours where the pests are thickest. For chiggers specifically, pants over socks through tall grass denies them the skin they reach first.
- Know the terrain. Grass edges, brush, unmowed field: chigger country. The middle of a mowed lawn mostly is not.
One more habit that costs nothing: check yourself for where the bites would be. Chiggers work the pinch points, sock lines, waistbands, the backs of knees, and they need hours of contact to do their worst. Repellent going on before the walk, and the shower coming right after it, brackets the exposure window from both ends. That bracket, not any single product, is the actual system.
Is there a disease risk?
The chigger-borne disease the CDC tracks is scrub typhus, spread through bites of infected chiggers. Most cases occur in rural areas of Southeast Asia, Indonesia, China, Japan, the Indian subcontinent, and northern Australia. For most readers of this page, the chigger problem is the itch, not infection, and the repellent-plus-shower routine handles it.
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 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.
Short answers
What is the best chigger repellent?
No agency ranks products. Illinois DPH names 7 to 30 percent DEET as the first line of defense, and NPIC states that picaridin repels insects, ticks and chiggers. From there, check the individual label for a chigger claim: 77 of the 631 registered skin repellents carry one with a stated protection time.
Does picaridin work on chiggers?
NPIC's fact sheet states that picaridin repels insects, ticks and chiggers. Whether a specific product carries a chigger claim, and for how many hours, is on that product's federal label.
Where should I apply chigger repellent?
Per EPA, only to exposed skin and/or clothing, never under clothing, following the label directions. Chiggers start at ground level, so ankles and lower legs are the front line. For children, EPA says to apply to your own hands first, then to the child.
Do I still need the shower if I wore repellent?
Yes. Illinois DPH advises a hot, soapy bath or shower immediately after visiting chigger areas to dislodge any that attached anyway. A chigger left in place can feed for several days, so the shower is cheap insurance.
Sources
- Illinois Department of Public Health, Mites Affecting Humans. https://dph.illinois.gov/topics-services/environmental-health-protection/structural-pest-control/mites-affecting-humans.html
- Illinois Department of Public Health, Biting Flies. https://dph.illinois.gov/topics-services/environmental-health-protection/structural-pest-control/biting-flies.html
- NPIC, Picaridin General Fact Sheet. https://npic.orst.edu/factsheets/PicaridinGen.html
- CDC, About Typhus Fevers. https://www.cdc.gov/typhus/about/index.html
- CDC, About Scrub Typhus. https://www.cdc.gov/typhus/about/scrub.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
Last reviewed 2026-08-26 · every claim on this page is sourced above