Yes, according to the EPA's own repeated safety reviews: normal use of DEET, including on children, "does not present a health concern to the general population." Formulations run from 5 to 99 percent DEET, and higher concentration buys you longer protection, not a different safety profile. What changes the calculus for a lot of people isn't a toxicology result. It's what an 8-to-99-percent solvent does to your skin, your sunglasses and the rest of your evening.
What is DEET, and what does it actually do?
DEET is the EPA's own shorthand for N,N-diethyl-meta-toluamide, developed by the U.S. Army in 1946 and released for public use in 1957. It's a colourless liquid with a faint smell that doesn't dissolve easily in water, and it doesn't kill anything it touches. The EPA describes the mechanism about as plainly as a government agency ever does: "Rather than killing them, DEET works by making it hard for these biting bugs to smell us." Roughly a third of the U.S. population reaches for it in a given year, spread across about 120 registered products from around 30 companies, in skin-applied formulations that run from 5 to 99 percent active ingredient.
That range matters more than people assume when they're standing in front of a shelf. Concentration in a DEET product isn't a dial marked "weak" to "strong". It's closer to a timer.
Is DEET safe to put on your skin?
The EPA has reviewed DEET twice on this exact question and reached the same answer both times. Its 1998 reregistration decision, after what it calls "extensive toxicity testing," concluded that "insect repellents containing DEET do not present a health concern" to the general population, including children. A 2014 interim review under EPA's Registration Review Program looked again with newer science and reached the same line: no identified risk of concern to human health.
That's the population-level answer. Individually, skin reactions do happen. The National Pesticide Information Center (NPIC) reports that people who've left DEET products on skin for extended periods have experienced irritation, redness, a rash or swelling, and that DEET absorbed through skin can be detected in blood for up to 12 hours afterwards before the liver breaks it down and the body clears it, mostly through urine. Notably, NPIC also flags that a DEET-containing sunscreen can push more DEET into the body than a DEET repellent used alone, and that drinking alcohol appears to increase absorption too, which is one more reason the standard EPA advice ("apply repellent after sunscreen, not combined into one product") exists.
There's also a children-specific answer, and it's more nuanced than "yes" or "no". The EPA places no restriction on the percentage of DEET used on children, because its data show no difference in effect between young and adult test animals. The American Academy of Pediatrics, cited by NPIC, takes a narrower stance: it recommends against DEET on infants younger than 2 months and caps use at once a day for children older than that. Both of those things are true at the same time, and a skincare-first article owes you both, not the flattering half.
What do regulators actually say about DEET concentrations?
Here's the part that gets muddled in almost every comparison chart: a higher percentage doesn't mean a stronger effect against insects. It means a longer effect. The CDC's guidance, via NPIC, is direct about it: "Higher concentration repellents may protect people for longer. However, they are not better at keeping insects away." Products under 10 percent active ingredient may only last one to two hours. The CDC recommends 20 percent DEET or higher for meaningful duration, and notes that anything above 50 percent buys no extra protection at all, meaning that jumbo bottle of 98 percent DEET on the bottom shelf isn't doing more work than a 30 percent spray, just lasting through more of the evening.
Layering is its own small trap. NPIC records that the CDC does not recommend a combined sunscreen-and-repellent product, because sunscreen typically needs reapplying far more often than a repellent does, and combining them means you either over-apply the repellent or under-apply the sun protection. Its guidance, if you're using both: sunscreen first, let it dry, repellent on top.
| DEET | |
|---|---|
| Registered for public use | 1957 (developed by the U.S. Army, 1946) |
| Formulation range | 5% to 99% |
| CDC-recommended range for meaningful duration | 20% or higher |
| Ceiling on added protection | None above 50% |
| Under 10% | May last only 1 to 2 hours |
| Detectable in blood after skin application | Up to 12 hours |
| Reported skin effects | Irritation, redness, rash, swelling (uncommon, mostly with extended contact) |
| Plastics and synthetics | Damages some plastics, vinyl, acetate, rayon, spandex |
Why do people look for a DEET-free option anyway?
Not because of the safety reviews above, usually. It's the wearing experience. DEET is a plasticiser, and NPIC's technical fact sheet is specific about it: it can damage certain rubber, plastic, vinyl and elastic materials, including sunglasses, watch faces and some synthetic fabrics. It has a faint but noticeable odour at higher concentrations. It has to be washed off skin and out of clothing once you're back indoors, per EPA's own safe-use guidance, along with a longer list: don't spray it under clothing, not on cuts or irritated skin, not near the eyes or mouth, hands first if you're applying to your face.
None of that makes DEET unsafe when used as directed. It makes it a slightly high-maintenance guest at a summer dinner, which is a legitimate reason to look elsewhere even when the toxicology is settled.
What goes into a botanical repellent instead?
The honest answer is: not very much of the category, at least not with the same regulatory weight. The EPA registers eight active ingredients for skin-applied repellents: DEET, picaridin, IR3535, oil of lemon eucalyptus, its refined component PMD, 2-undecanone, catnip oil and oil of citronella. Of those, oil of lemon eucalyptus and PMD are the only ones that are genuinely plant-derived and carry a registered efficacy claim you can check against a label.
Everything else marketed as "natural" or "botanical" and sold without a registration number sits on the EPA's minimum-risk exemption list, meaning it hasn't been formally evaluated for efficacy or safety by the agency. That's not the same as "doesn't work". It's the same as "nobody has checked, so the claim is the manufacturer's alone."
Is a botanical repellent as dependable as DEET?
Depends entirely on which botanical, and that's the honest answer a lot of green-marketing copy skips. Oil of lemon eucalyptus, at the registered concentrations, is genuinely comparable to lower-strength DEET in published duration studies. Most other plant oils fade in under an hour and need frequent reapplication to do anything at all, which is a real cost if you're outdoors for a whole evening rather than a ten-minute dog walk.
This is also where a daily-wear cosmetic sits, and it's worth being precise about the category rather than blurring it. Misaj, a skincare brand formulated and produced in France, positions its Glow Protect as a moisturiser first: on its own product page, as of 2026, it describes itself as combining "hydration, skin barrier support and botanical mosquito protection in a single cream designed to be worn daily," built around andiroba oil, aloe vera and vitamin E, with "a natural aromatic blend that helps deter mosquitoes" (eucalyptus citriodora, geranium, Atlas cedar and clove). It is an EU cosmetic sold at 100 ml for 38 euros, not an EPA-registered, skin-applied repellent with a tested protection window or a registration number, because that isn't the category it's in. The brand publishes its full INCI list on the page, including the fragrance allergens (citronellol, linalool, geraniol, eugenol and limonene among them), which is the part worth reading before buying rather than after.
Which one should you pick for your own summer?
If mosquito-borne illness is a genuine concern for wherever you're headed, that decision sits with a pharmacist or a doctor and the public health guidance for the destination, not with a blog post and not with a cosmetic. A registered repellent, applied and reapplied per its label, is what the EPA and CDC guidance above is written for, and 20 percent DEET or an equivalent registered active is the boring, correct answer in that situation.
For everyday, lower-stakes wear, the trade-off is honest: DEET gives you a wider concentration range and a longer, better-documented duration curve, at the cost of odour, plastic damage and a wash-off routine. A daily-wear cream built around botanicals gives up some of that duration and the registered efficacy number, in exchange for something you're actually willing to put on your face every morning next to your moisturiser. Neither answer is wrong. They're answering different questions.
Frequently asked questions
Is DEET safe for everyday use?
The EPA's 1998 and 2014 reviews both concluded that normal use of DEET does not present a health concern to the general population, including children, when used as directed. Skin reactions are reported but uncommon, and mostly follow extended contact or misuse rather than ordinary application.
What DEET percentage should I actually buy?
The CDC recommends 20 percent or higher for meaningful duration, per NPIC's guidance. Products above 50 percent DEET offer no extra protection, and products under 10 percent may only last one to two hours, so the highest bottle on the shelf isn't automatically the right one.
Can I use DEET and sunscreen together?
Yes, but not as a combined product. NPIC reports that the CDC does not recommend a sunscreen-repellent combo, because the two need reapplying on different schedules. Apply sunscreen first, let it dry, then apply repellent on top.
Is a botanical repellent as effective as DEET?
It depends on the ingredient. Oil of lemon eucalyptus, at registered concentrations, is the one botanical the EPA registers with a checkable duration claim. Most other plant oils fade faster and need more frequent reapplication than DEET.
You can read the full ingredient list on the Glow Protect product page. For what to actually pack before a trip, see your mosquito season packing checklist, and for how the botanical tier itself breaks down, see botanical mosquito repellent ingredients, explained.
Sources (fetched 2026-09-05)
- EPA, DEET. Page states "Last updated on May 27, 2026" (mechanism quote, 1946/1957 history, ~120 products/30 companies, one-third of the population, 1998 and 2014 review conclusions, children's-use policy, apparent-reaction guidance). https://www.epa.gov/insect-repellents/deet
- EPA, Skin-Applied Repellent Ingredients. Page states "Last updated on January 23, 2026" (the eight registered actives: DEET, picaridin, IR3535, oil of lemon eucalyptus, PMD, 2-undecanone, catnip oil, oil of citronella). https://www.epa.gov/insect-repellents/skin-applied-repellent-ingredients
- EPA, Using Insect Repellents Safely and Effectively. Page states "Last updated on November 10, 2025" (wash-off guidance, application restrictions, hands-first-to-face instruction). https://www.epa.gov/insect-repellents/using-insect-repellents-safely-and-effectively
- NPIC, DEET General Fact Sheet, review date July 2008 (skin reactions, blood detection window up to 12 hours, sunscreen-absorption interaction, AAP under-2-months guidance, 30% usage figure, 1946/1957 history restated). https://npic.orst.edu/factsheets/DEETgen.html
- NPIC, DEET Technical Fact Sheet, review date July 2008 (the plasticiser passage: rubber, plastic, vinyl, elastic materials, sunglasses, watch crystals, synthetic fabrics). https://npic.orst.edu/factsheets/archive/DEETtech.html
- NPIC, Insect Repellents Fact Sheet, review date February 2018 (concentration-vs-duration guidance, the CDC's 20%-or-higher and above-50%-no-extra-benefit positions, the under-10%-is-1-to-2-hours figure, the sunscreen-layering order). https://npic.orst.edu/factsheets/repellents.html
- misajskin.com, Glow Protect product page (price, size, quoted brand wording, full INCI), verified live 2026-09-05. https://misajskin.com/products/glow-protect