Best mosquito repellents for skin

The whole shelf reduces to a few actives

Walk the repellent aisle and you will see dozens of bottles. Read the actives panel on each and the list collapses to a handful. The CDC's bite-prevention guidance points people at EPA-registered repellents containing DEET, picaridin, oil of lemon eucalyptus (OLE) or its synthesized active PMD, IR3535, or 2-undecanone. In practice an American shelf carries three of those in volume: DEET, picaridin and OLE.

That is the single most useful thing to know about this category. You are not choosing a brand, you are choosing an active and a concentration. Two bottles with the same active at the same percentage will perform about the same regardless of whose logo is on the front, and the price difference between them is mostly packaging.

What is NOT on that list: citronella oil, peppermint, lemongrass, cedar, geraniol, clove, repellent wristbands, vitamin patches and ultrasonic apps. Some of those produce a measurable effect in a laboratory for a few minutes. None of them hold a protection time you can plan an evening around. If a bottle's actives panel reads like a salad dressing, put it back.

What to look for

The active, first. Picaridin, DEET or OLE. Nothing else earns the shelf space.

The concentration, second. Concentration controls DURATION, not strength. A 7% DEET product and a 25% DEET product both repel; the 7% one stops doing it much sooner. Going far above roughly 30% DEET buys very little extra time, which is why 20-30% is the sensible range rather than the near-pure bottles sold for expeditions. For picaridin, 20% is the long-duration formulation and 10% is the short one.

The format, third. A pump spray gives you control and travels well; an aerosol covers an arm faster, which matters with a wriggling child; a lotion puts the product exactly where you want it and nowhere else. The best format is whichever one you will actually use, because an unapplied repellent protects nobody.

What it does to your gear. This is the underrated criterion. DEET acts as a solvent. It hazes polycarbonate sunglasses, softens watch straps, marks painted surfaces and attacks synthetic fabric — the exact materials a modern outdoor wardrobe is made of. Picaridin does not. If you own expensive sunglasses or a nylon pack, that difference is worth more than the few dollars DEET saves you.

The age limit on the label. OLE products state plainly that they are not for children under three. DEET and picaridin carry no equivalent restriction in the American Academy of Pediatrics' guidance for infants over two months, which surprises people who assume the plant-based one must be the gentler one. It is the other way round. Our kid-safe mosquito repellents page works through that properly.

Skin, not the yard. Everything here goes on a person. If what you actually want is to make the whole yard less miserable, that is a different product class — see best yard mosquito repellents and how to get rid of mosquitoes in your yard.

How the three compare

Built from what each product's own label and manufacturer state, not from our guesses.

Read down the "effect on gear" and "age restriction" rows before you read the cost row. Those two lines are where most buying mistakes in this category happen.

Applying it so it actually works

A correctly chosen repellent applied badly performs like a cheap one. Five things matter:

Cover every bit of exposed skin. Mosquitoes find the gap. Ankles above the sock line, the back of the neck, behind the ears, the strip of wrist between glove and sleeve. A missed patch gets bitten while the rest of you is protected, and people conclude the product failed.

Do not spray it under clothing. Skin repellents belong on skin that is exposed to the air. If you want treated clothing, that is permethrin, which is applied to the FABRIC and never to skin — a different product with different rules, and genuinely dangerous around cats while it is wet. DEET vs picaridin covers the skin-active comparison in depth.

Sunscreen first, repellent second. Let the sunscreen absorb, then apply repellent over it. Combination sunscreen-plus-repellent products are a poor compromise, because sunscreen needs reapplying far more often than repellent does, so you end up over-applying one and under-applying the other.

On a face, spray your hands and wipe it on. Never spray toward a face, yours or anyone else's — and on a child, you apply it, not them.

Reapply on the label's schedule, not when you start getting bitten. Swimming, heavy sweating and towelling all strip it early.

Where a skin repellent is the wrong tool

Honesty about scope, because this is a site about solving the problem rather than selling the aisle:

• A seat on the patio for two hours. A cartridge zone repeller is less fuss than coating everyone — see mosquito trap vs repellent.
• Mosquitoes inside the house. You have a screen or door-sweep problem, not a repellent problem. Mosquitoes in the house walks the gaps.
• A yard that is unbearable all season. The population is being produced locally, which means standing water. Do mosquito dunks work is the highest-leverage fix on this site.
• A dog. Human repellent does not go on an animal. Mosquito repellent for dogs explains what does.
• Camping, where you want layers. Best mosquito repellents for camping covers skin plus clothing plus the tent together.

Why people get bitten anyway

Three recurring reasons, none of which are the bottle's fault:

They bought a low concentration and expected a long evening. A 5-10% product is a two-hour product. If you are out from six until eleven you either buy the long-duration formulation or you reapply at eight.

They applied it like perfume. A couple of spritzes toward the general direction of an arm leaves most of the skin untreated. The correct amount is enough to form a thin even film, rubbed in.

They are standing next to the source. No repellent compensates for a yard producing thousands of mosquitoes a week from a clogged gutter. Repellent is the last layer, not the first — see what attracts mosquitoes for the part you can remove for free.

The short version

Buy 20% picaridin unless you have a reason not to. Buy 25% DEET if mosquito pressure where you live is genuinely severe and you do not mind what it does to your gear. Buy oil of lemon eucalyptus if you want a plant-based active with real registered standing and there is nobody under three in the group. Everything else in the aisle is a scented bottle with a mosquito drawn on the label.