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This article is informational, not medical advice. Follow the product label exactly, including guidance on children, reapplication, and use with sunscreen, and check with your pediatrician or doctor if you have specific health questions.
In a straight DEET vs. picaridin insect repellent matchup, OFF! Deep Woods’ 25% DEET and Sawyer’s 20% picaridin spray both deliver EPA- and CDC-backed protection for well under 3 cents an hour, while Repel’s plant-based lemon eucalyptus formula protects for fewer hours per application and ends up costing more per hour despite the lowest sticker price of the three. If you want the longest single-application window, Sawyer’s picaridin claims 12 hours against mosquitoes and ticks. If you want to skip synthetic chemicals entirely and don’t mind reapplying more often, Repel is the only “natural” option the CDC actually recognizes as comparably effective.
Our picks at a glance
- Best overall value: OFF! Deep Woods (25% DEET) — the lowest cost per hour of protection in our math below, with an 8-hour label claim against mosquitoes.
- Best for tick country and long days: Sawyer Premium Insect Repellent (20% picaridin) — a 12-hour mosquito and tick claim, no plastic or gear damage, and a milder feel on skin than DEET.
- Best plant-based option that’s actually proven: Repel Plant-Based Lemon Eucalyptus (30% oil of lemon eucalyptus) — the only “natural” active ingredient the CDC and EPA rank alongside DEET and picaridin.
- Skip if you’re under 3: the CDC specifically advises against oil of lemon eucalyptus and PMD products, including Repel’s formula here, for children younger than three.
How the three repellents compare
All three actives below appear on the CDC’s own list of recommended repellent ingredients, alongside IR3535 and 2-undecanone. That is a shorter list than the drugstore shelf suggests — plenty of “natural” sprays built on citronella, essential oils, or wearable devices don’t make this list at all, which is a running theme in this comparison.
| Attribute | OFF! Deep Woods | Sawyer Picaridin | Repel Lemon Eucalyptus |
|---|---|---|---|
| Active ingredient | 25% DEET | 20% picaridin | 30% oil of lemon eucalyptus (OLE) |
| CDC/EPA recognized | Yes | Yes | Yes |
| Typical size & price | 6 oz aerosol, ~$9.49 | 4 oz pump spray, ~$10.99 | 4 oz pump spray, ~$7.00 |
| Labeled duration, mosquitoes | Up to 8 hours | Up to 12 hours | Up to 6 hours |
| Labeled duration, ticks | Up to 8 hours | Up to 12 hours | Not specifically claimed |
| Biting flies, gnats, chiggers | Not a label claim | Up to 8 hours; Sawyer states it beats DEET here | Not specifically claimed |
| Minimum age | No CDC age restriction; check label | Safe from 2 months per CDC guidance | Not for children under 3 |
| Damages plastics, watch crystals, some synthetics | Yes — a known DEET trait | No | No |
| Feel and scent | Greasy on skin, strong chemical smell | Lighter feel, milder scent | Herbal, lemon-eucalyptus scent |
Prices reflect typical current retail listings as of this writing and move with sales and package size — treat them as directional, not a live quote, and always check the concentration on the bottle you actually buy, since all three brands sell multiple strengths.
What the EPA and CDC actually say
The EPA’s own registry of skin-applied repellent ingredients recognizes a short list: DEET (in more than 500 registered products), picaridin (around 40 products), IR3535 (about 45 products), oil of lemon eucalyptus and its derivative PMD (6 products), and 2-undecanone (1 product). The CDC’s mosquito prevention guidance points to that same short list and adds a specific instruction for households using both sunscreen and repellent: apply sunscreen first, repellent second.
Consumer Reports’ own repellent testing adds the concentration detail that matters most when you’re standing in an aisle full of near-identical bottles. Products with 15% to 30% DEET provide long-lasting protection, according to Consumer Reports, while 7% to 10% DEET products performed poorly, and going above 30% DEET doesn’t improve effectiveness — it just adds side-effect risk. Picaridin needs to hit roughly 20% in spray form to perform well; Consumer Reports found a 5% picaridin product scored among the lowest in its tests. And OLE performed well specifically at the 30% concentration Repel’s formula uses.
That concentration detail is the first thing to check on any bottle, ours included: a “natural” or “DEET-free” label means nothing if the active ingredient sits below the concentration where CDC- and EPA-recognized actives actually work.
The cost-per-hour math the label doesn’t show you
Sticker price tells you almost nothing about what a repellent actually costs to use, because bottle size, concentration, and labeled duration all move independently. Here is our own illustrative math, not a published statistic: assuming a typical adult full-body application — arms, legs, neck, ankles — uses about 6 pump sprays, or roughly a tenth of a fluid ounce, we can work out applications per bottle, cost per application, and cost per hour of labeled protection for all three.
| Repellent | Price | Est. applications per bottle | Est. cost per application | Labeled hours | Est. cost per hour |
|---|---|---|---|---|---|
| OFF! Deep Woods | $9.49 / 6 oz | ~60 | ~16¢ | 8 | ~2.0¢ |
| Sawyer Picaridin | $10.99 / 4 oz | ~40 | ~27¢ | 12 | ~2.3¢ |
| Repel Lemon Eucalyptus | $7.00 / 4 oz | ~40 | ~18¢ | 6 | ~2.9¢ |
The honest surprise here: Repel is the cheapest bottle on the shelf and still the most expensive per hour of protection, because its labeled duration is half of Sawyer’s. OFF! Deep Woods wins on raw cost efficiency, and Sawyer is close behind once you account for how much longer a single application lasts. None of these gaps are large enough to be the deciding factor on their own — a penny or two an hour is noise next to a tick-borne illness — but it’s the number nobody puts on the front of the box, and it explains why “the cheap one” isn’t automatically the economical one.
OFF! Deep Woods: the default that works, with real caveats
DEET has been the benchmark repellent active ingredient for decades, and Deep Woods is SC Johnson’s highest-concentration mainstream formula at 25%. That sits squarely in Consumer Reports’ 15%–30% sweet spot, and the label’s 8-hour mosquito claim reflects real-world performance rather than a marketing round-up.
Where it wins. It’s the cheapest option per hour of protection in our math above, it’s sold everywhere from gas stations to sporting goods stores, and 25% DEET is a well-established, extensively studied concentration with decades of use behind it.
The dealbreaker to know before you buy. DEET is a genuine solvent for some plastics, synthetics, and coatings — it can damage watch faces, sunglasses lenses, some rain jackets, and fishing line, a pattern reported consistently enough that most outdoor retailers carry an explicit warning about it. It also has a stronger chemical smell and a greasier feel on skin than the other two options here, and current CPSC and manufacturer guidance still advises against using DEET products on infants under 2 months old.
Buy it if you want the most economical option per hour and don’t mind the smell or the gear precautions. Skip it if you’re spraying near expensive gear, sunglasses, or synthetic fabrics, or you simply prefer a lighter-feeling product.
Sawyer Picaridin: the longest single application
Picaridin was developed to match DEET’s effectiveness without DEET’s downsides, and Sawyer’s 20% formula is the concentration Consumer Reports found actually performs — well above the 5% versions that score poorly. Sawyer’s own label claims are the longest of the three here: up to 12 hours against mosquitoes and ticks, and up to 8 hours against biting flies, gnats, chiggers, and sand flies, where Sawyer specifically states picaridin outperforms DEET.
Where it wins. It doesn’t damage plastics, synthetics, or gear the way DEET can, which matters if you’re spraying near a tent, pack, or fishing gear. It’s also nearly odorless and doesn’t leave the greasy film DEET does, and the CDC lists it as safe for children as young as 2 months.
The honest drawback. It costs more per bottle and, by our math above, a touch more per hour than DEET once you account for bottle size — the gap is small, but it’s real. Picaridin can also still irritate skin and eyes on sensitive users, the same caution that applies to any topical repellent.
Buy it if you want the longest stretch between reapplications, you’re protecting gear you don’t want DEET near, or you simply prefer a lighter-feeling spray. Skip it if raw cost per bottle is your only concern.
Repel Lemon Eucalyptus: proven, but shorter-acting
Oil of lemon eucalyptus is the one plant-derived active ingredient the CDC and EPA actually rank alongside DEET and picaridin — not because it’s gentler marketing, but because it has performance data behind it at the right concentration. Repel’s formula uses 30% OLE, the same concentration Consumer Reports found performed well in its testing, and the brand’s own label claims up to 6 hours of mosquito protection.
Where it wins. It’s free of synthetic actives for buyers who specifically want that, it won’t damage gear, and unlike citronella candles, wristbands, or unregistered essential-oil blends, it’s actually backed by CDC and EPA recognition rather than just a “natural” label.
The honest drawback. Six hours is half of Sawyer’s claimed window, which means more frequent reapplication on a long day outside, and that shows up directly in the cost-per-hour math above despite the lowest sticker price. The CDC is also explicit that OLE and PMD products should not be used on children under 3 years old — a firmer age line than either DEET or picaridin carries.
Buy it if avoiding synthetic actives is a priority and you’re willing to reapply more often. Skip it if your child is under 3, or you need a single application to last a full workday outdoors.
Which one fits your evening?
| If you’re… | Reach for |
|---|---|
| Doing yard work or a backyard cookout for a couple of hours | OFF! Deep Woods — cheapest per hour, and the smell fades once you’re inside |
| Hiking, camping, or working outdoors all day in tick country | Sawyer Picaridin — the longest labeled window and no gear damage |
| Spraying kids over age 3, or avoiding synthetic actives on principle | Repel Lemon Eucalyptus — reapply roughly every 6 hours |
| Protecting an infant under 2 months | None of these — use protective clothing and mesh netting per CDC guidance, and ask your pediatrician |
| Wearing sunscreen too | Any of the three — just apply sunscreen first, repellent second, per CDC guidance |
What doesn’t actually work
None of the three products above are citronella candles, tiki torches, ultrasonic devices, or wearable clip-ons — and that’s deliberate. Only ingredients on the CDC and EPA’s recognized list have performance data behind them; citronella-based and other unregistered “natural” products are common, but they aren’t on that list. If you want the deeper dive on which patio devices genuinely reduce mosquito bites versus which ones mostly just smell nice, we ran that evidence separately in our Thermacell vs. bug zappers vs. citronella comparison.
How we compared
We built this comparison from EPA’s public registry of recognized repellent active ingredients, CDC mosquito-prevention guidance, and Consumer Reports’ published testing on concentration thresholds, cross-checked against each brand’s own label claims and current retail pricing at the time of writing. We did not conduct our own repellent testing; the cost-per-hour table is our own arithmetic built on a disclosed, illustrative application-size assumption, not a manufacturer figure. Prices and package sizes change with retailers and sales, so treat listed prices as directional. Read more about how we approach comparisons on our editorial standards page. Prices are approximate, current as of publication, and change frequently — confirm the latest price with the retailer before buying.
Frequently asked questions
Is picaridin as effective as DEET?
At the concentrations used here, yes. The CDC and EPA both recognize picaridin alongside DEET, and Sawyer’s 20% formula carries a longer labeled duration than the 25% DEET product in this comparison. The two actives simply work through different mechanisms and have different secondary trade-offs, like DEET’s plastic damage versus picaridin’s higher per-bottle cost.
What DEET percentage should I actually buy?
Consumer Reports found that 15% to 30% DEET provides long-lasting protection, while products around 7% to 10% performed poorly in testing. Going above 30% doesn’t meaningfully improve protection and only adds side-effect risk, so a 25% to 30% product, like OFF! Deep Woods, sits in the range that actually works without going higher than needed.
Are citronella candles or wristbands a real alternative?
They aren’t on the CDC or EPA’s list of recognized repellent ingredients the way DEET, picaridin, and oil of lemon eucalyptus are, and skin-applied repellent is what actually protects the skin it’s applied to. Ambient devices like candles and torches can reduce mosquitoes in a small area but are not a substitute for a repellent on exposed skin.
Can I use insect repellent and sunscreen together?
Yes — the CDC’s specific guidance is to apply sunscreen first and let it absorb, then apply insect repellent second. Combination sunscreen-repellent products exist, but the CDC and most dermatologists generally recommend separate products applied in that order, since sunscreen typically needs more frequent reapplication than repellent.
Which repellent is safest for young children?
Follow the label and current CDC guidance rather than a brand preference: picaridin is CDC-listed as appropriate from 2 months of age, while oil of lemon eucalyptus and PMD products, including Repel’s formula in this comparison, should not be used on children under 3. Apply repellent to your own hands first and then to a child’s face, avoiding eyes, mouth, and any cuts or irritated skin, and ask your pediatrician with specific concerns.
Does a higher price mean better protection?
Not necessarily. In our comparison, the cheapest bottle (Repel) worked out to the highest cost per hour of protection because its labeled duration is shorter, while the cheapest per-hour option (OFF! Deep Woods) was also the lowest sticker price. Concentration and labeled duration matter more than shelf price alone.
Bottom line
All three of these repellents work, because all three use an active ingredient the CDC and EPA actually recognize — the real decision is duration, gear compatibility, and who’s wearing it. OFF! Deep Woods is the cheapest way to get eight solid hours of protection if you don’t mind the smell and keep it away from plastics and synthetics. Sawyer’s picaridin spray is the pick for long days in tick country or anywhere near gear you don’t want damaged. Repel’s lemon eucalyptus formula is the only “natural” option worth taking seriously, provided you’re prepared to reapply roughly every six hours and your kids are over 3. Whichever you buy, check the concentration on the label, not just the front-of-bottle claims, and pair it with the backyard defenses in our patio mosquito control comparison and the shade setup in our beach and backyard shade guide. Applying sunscreen too? See our mineral vs. chemical sunscreen comparison — and remember to put that on first. More seasonal comparisons live in our Beach & Backyard category.
