# Longsleeve > Longsleeve is an EPA-registered insect repellent lotion (EPA Reg. No. 101457-1): 20% picaridin, 5% squalane, 5% glycerin, fragrance-free, nine disclosed ingredients. Repels mosquitoes and ticks for up to 14 hours. Made by Hour 72, Inc., a small New York company with no outside investors. Currently in launch/waitlist mode. ## Key pages - [Home](https://longsleeve.com/): what Longsleeve is and the full ingredient label - [Product](https://longsleeve.com/product): the tube, pricing, FAQ with sourced answers on duration, kids, pregnancy, and Lyme disease - [The science](https://longsleeve.com/science): how picaridin works, the registered efficacy claim, and what affects protection time - [Repellent actives, compared](https://longsleeve.com/repellent-actives): every EPA-registered repellent active (DEET, picaridin, IR3535, OLE, PMD, 2-undecanone, catnip oil, citronella, exempt oils, permethrin) on eleven questions, each answer quoted from EPA, CDC, NPIC or the study; protection times from EPA's tool - [DEET-free and tick pages](https://longsleeve.com/repellent-actives/deet-free): the nine other EPA actives and the products under them; tick page at /repellent-actives/ticks - [The almanac](https://longsleeve.com/facts): a sourced field guide to mosquitoes, ticks, the diseases they carry, and how repellent actives compare (CDC/EPA/WHO citations listed on-page) - [Ingredients](https://longsleeve.com/ingredients): every ingredient in the formula, what it does, and why it is there - [About](https://longsleeve.com/about): the founder story and the road to EPA registration - [What every tube funds](https://longsleeve.com/gives): the giving program, the arithmetic behind "300 protected nights per tube" with sources, and the Tick Test Fund ## The Journal (sourced field notes) Every claim on these pages is sourced to the CDC, EPA, WHO, state health departments, or peer-reviewed research, with the full source list at the bottom of each page. - [Aedes aegypti Mosquito: Identification, Bites, Range, and Disease](https://longsleeve.com/blog/aedes-aegypti): How to identify Aedes aegypti by the lyre marking on its back and its white leg bands, how it differs from Aedes albopictus, and where CDC says it lives. - [Alpha-Gal Syndrome: How Long After a Tick Bite Symptoms Start](https://longsleeve.com/blog/alpha-gal-syndrome): How long after a tick bite alpha-gal syndrome starts, which ticks carry alpha-gal, whether it ever goes away, and what CDC says about preventing tick bites. - [Black Fly Bites: Swelling, Bleeding, Treatment, and Prevention](https://longsleeve.com/blog/black-fly-bites): Why black fly bites swell, bleed, and heal slowly, what CDC bite care says to do, when infected-bite signs matter, and how hats, clothing, repellent, and head nets help. - [Black Fly Repellent: DEET, Picaridin, Clothing, and Timing](https://longsleeve.com/blog/black-fly-repellent): How to choose black fly repellent for buffalo gnat season using Illinois DPH and EPA guidance, including DEET, picaridin, hats, light-colored clothing, and head nets. - [Bug Spray and Sunscreen: Which Goes On First, and Why No Combo](https://longsleeve.com/blog/bug-spray-and-sunscreen): Sunscreen first, let it dry, then repellent. DEET over sunscreen cuts SPF by a third; the repellent keeps working. Why combos fail, and the picaridin studies. - [Bug Spray on Clothes or Skin? Stains, Synthetics, and Fabric Time](https://longsleeve.com/blog/bug-spray-on-clothes): Both, never under clothing. DEET is a plasticizer that can hurt synthetics, not cotton or wool. Permethrin is the product made for fabric. How to wash it out. - [Can I Put Mosquito Repellent on My Dog?](https://longsleeve.com/blog/can-i-put-mosquito-repellent-on-my-dog): Only if the label says it is for animals, the EPA says. Heartworm, what NPIC says about DEET and pets, picaridin, and which products are labeled for dogs. - [Can I Use DEET on My Dog? What EPA and NPIC Say](https://longsleeve.com/blog/can-i-use-deet-on-my-dog): EPA says not to use any product on pets unless the label clearly states it is for animals. Its 1998 DEET review listed cats and dogs; 2014 lists horses. - [Can You Put Bug Spray on Your Face? Hands First, and Why](https://longsleeve.com/blog/bug-spray-on-face): Yes, but never sprayed at your face. Hands first, then face and neck, sparingly at the ears. Why the eye warning exists, eye first aid, and a child's face. - [CDC Standing Water Rule: Empty and Scrub Containers Once a Week](https://longsleeve.com/blog/standing-water-mosquito-control): Standing water mosquito control: the CDC says empty and scrub weekly, EPA says empty and change weekly, and the CDC names Bti for water you cannot dump. - [Chigger Repellent: DEET, Picaridin, Labels, and Showering](https://longsleeve.com/blog/chigger-repellent): How to choose chigger repellent using Illinois DPH, NPIC, and EPA guidance: DEET, picaridin, label claims, exposed skin, clothing, and the post-grass shower. - [DEET Safety: What EPA and CDC Reviews Actually Found](https://longsleeve.com/blog/deet-safety-evidence): DEET carries EPA registration, a Group D cancer class (not classifiable as a human carcinogen), and EPA findings of no health concern with normal use. - [Dengue and Travel: Day-Biting Mosquitoes and Warning Signs](https://longsleeve.com/blog/dengue-travel): CDC-sourced dengue travel guide: where risk is concentrated, why Aedes mosquitoes bite during the day, what severe dengue warning signs mean, and what to pack. - [Do Bug Zappers Work on Mosquitoes? What Field Studies Found](https://longsleeve.com/blog/bug-zappers): What field studies found about bug zappers and mosquitoes, why ultraviolet light catches mostly non-target insects, and how EPA device rules differ from repellent registration. - [Do Citronella Candles Work? Evidence on Plant-Based Repellents](https://longsleeve.com/blog/citronella-and-plant-repellents): EPA on citronella candles, registration, and citronella plants. Candles cut bites 42 percent in one field trial and had no effect in a wind tunnel. - [Do Ultrasonic Mosquito Repellers Work? Cochrane Review, FTC Cases](https://longsleeve.com/blog/ultrasonic-repellers): What controlled trials, a Cochrane review, EPA device rules, and FTC enforcement history say about ultrasonic mosquito repellers and electronic mosquito repellents. - [Does Bug Spray Expire? What EPA Label Rules Actually Say](https://longsleeve.com/blog/does-bug-spray-expire): Purdue says pesticide makers generally design products to stay stable at least two to three years sealed. EPA's label rule and how to spot a bad bottle. - [Ehrlichiosis: Symptoms, Lone Star Tick Link, and Treatment](https://longsleeve.com/blog/ehrlichiosis): CDC-sourced guide to ehrlichiosis symptoms, which ticks carry Ehrlichia bacteria, where cases occur, why early treatment matters, and how to reduce tick bites. - [Gnat Repellent: Biting Midges, Labels, Screens, and Fans](https://longsleeve.com/blog/gnat-repellent): How to choose gnat repellent when the biting gnats are midges: CDC label terms, DEET and picaridin guidance, EPA label rules, 20x20 mesh screens, and fans. - [How Long Chigger Bites Itch, and Why They Look Like They Spread](https://longsleeve.com/blog/chigger-bites): Chigger bites itch for up to a week and heal in up to two. Why they seem to spread, why they cluster at the waistband, and when a month of itch needs a doctor. - [How Long Does Picaridin Last? 3 to 14 Hours, Per EPA Labels](https://longsleeve.com/blog/how-long-does-picaridin-last): Picaridin lasts 3 to 4 hours at 5% and up to 14 hours as a 20% lotion, per EPA labels; sprays 12, wipes 8. What shortens it, when to reapply, and how to store it. - [How to Keep Mosquitoes Away From Your Patio](https://longsleeve.com/blog/how-to-keep-mosquitoes-away-from-patio-dinner): Dump standing water weekly, use an EPA-registered repellent on exposed skin, run a fan. What the CDC, EPA and field studies say about candles and sprays. - [How to Remove a Tick: Tweezers, Timing, and What Not to Do](https://longsleeve.com/blog/tick-removal): CDC tick removal steps: use fine-tipped tweezers, pull steadily, avoid heat, nail polish, and petroleum jelly, clean the bite, and watch for fever or rash. - [Insect Repellent for Hiking: Ticks, Mosquitoes, and Permethrin](https://longsleeve.com/blog/insect-repellent-for-hiking): A hiking bite-protection checklist using CDC, EPA, and NPIC guidance: permethrin-treated gear, EPA-registered skin repellent, trail habits, reapplication, and post-hike checks. - [Lone Star Tick: Identification, Range, Bites, and Alpha-Gal Link](https://longsleeve.com/blog/lone-star-tick): How to identify the lone star tick, where it lives in the U.S., how it bites, which CDC-listed diseases are linked to it, and its association with alpha-gal syndrome. - [Lyme Disease Prevention: Tick Checks, Repellent, Permethrin](https://longsleeve.com/blog/lyme-disease-prevention): CDC-sourced Lyme disease prevention steps: avoid tick habitat, use EPA-registered repellent, treat clothing with permethrin, check for ticks, and remove attached ticks promptly. - [Malaria Prevention for Travelers: CDC Yellow Book Checklist](https://longsleeve.com/blog/malaria-prevention-travelers): CDC guidance on malaria prevention for travelers: chemoprophylaxis plus bite avoidance, yellow fever versus malaria, and how to read the country row. - [Mosquito Bite Treatment: Itch, Swelling, and Infection Signs](https://longsleeve.com/blog/mosquito-bite-treatment): CDC mosquito bite treatment steps: wash, ice for 10 minutes, use anti-itch or antihistamine cream as directed, avoid scratching, and watch for infection signs. - [Mosquito Repellent Candles, Torches and Coils: What Works](https://longsleeve.com/blog/mosquito-repellent-candles): Studies found relatively small reductions in bites from citronella candles. How to read the label, where to put candles and coils, and what goes on skin. - [Mosquito Repellent for Kids: CDC Age Rules, None Under 2 Months](https://longsleeve.com/blog/mosquito-repellent-for-kids): No insect repellent on babies under 2 months, the CDC says; use netting. No oil of lemon eucalyptus or PMD under 3. AAP caps DEET at 30% for kids. - [Mosquito Repellent in Pregnancy: CDC Guidance, DEET, Picaridin](https://longsleeve.com/blog/mosquito-repellent-pregnancy): CDC covers picaridin and DEET in pregnancy. MotherToBaby: picaridin unstudied in human pregnancy; the one DEET trial covered trimesters two and three only. - [Mosquito With White Stripes: Is It an Asian Tiger Mosquito?](https://longsleeve.com/blog/asian-tiger-mosquito): How to tell if the black mosquito with white stripes on its legs and body is an Asian tiger mosquito, why it bites in daylight, and how long its bites last. - [Natural Bug Repellents: EPA Registration, Plant Oils, Evidence](https://longsleeve.com/blog/natural-repellents): All eight EPA-registered repellent ingredients in one table, in EPA's words, plus how to tell a registered repellent from an exempt one on the shelf. - [No-See-Um Repellent: Check the Label for Biting Midges](https://longsleeve.com/blog/no-see-um-repellent): How to choose no-see-um repellent by label, including CDC guidance for EPA-registered products labeled for flies, biting flies, or Culicoides, plus screens and fans. - [No-See-Ums: What They Are and What Repels Them](https://longsleeve.com/blog/no-see-ums): What no-see-ums are, why biting midges get through screens, when they bite, what their bites mean, and how to choose an EPA-registered repellent labeled for them. - [Permethrin and Picaridin: The Two-Layer Tick and Mosquito System](https://longsleeve.com/blog/permethrin-picaridin-system): Permethrin goes on clothing, gear and bed nets; an EPA-registered repellent goes on skin. Which products contain permethrin and why it never touches skin. - [Permethrin Around Dogs and Cats: What the Labels Say](https://longsleeve.com/blog/is-permethrin-safe-around-pets): Some permethrin products are labeled for dogs. Cats are the exception: what NPIC, EPA, FDA and the labels themselves say about cats, licking and clothing. - [Permethrin Clothing: How Often to Re-Treat and How Long It Lasts](https://longsleeve.com/blog/permethrin-clothing): How often to re-treat permethrin clothing, how long self treated and factory treated fabric lasts, how long it dries, and why permethrin never goes on skin. - [Picaridin and Dogs: What the Label Decides](https://longsleeve.com/blog/is-picaridin-safe-for-dogs): EPA says do not use any product on pets unless the label clearly states it is for animals. The picaridin records we quote list human skin. Ask your vet. - [Picaridin Lotion vs Spray: Which Repellent Form Works Better?](https://longsleeve.com/blog/picaridin-lotion-vs-spray): A 12-hour trial found 20% picaridin spray and lotion equal at the same dose. What decides protection, and what our read of EPA's data shows at 14 hours. - [Picaridin vs DEET: Duration, Kids, Ticks, and Materials](https://longsleeve.com/blog/picaridin-vs-deet): Picaridin vs DEET from EPA, CDC, AAP, NPIC, and field studies: how they work, how long they last, child guidance, tick use, odor, and material compatibility. - [Sand Flea Bites: Midges, Sand Flies, True Fleas, and Treatment](https://longsleeve.com/blog/sand-flea-bites): What people call sand flea bites at the beach are often biting midges or sand flies. How to tell them apart, when tropical tungiasis matters, and how CDC bite care helps. - [Should You Wash Off Bug Spray? Before Bed, After a Hike, on Kids](https://longsleeve.com/blog/wash-off-bug-spray): Yes. Wash treated skin and clothes with soap and water once you are indoors; it is printed on the label. Skipping it, sleeping in it, kids, and the smell. - [Tick Identification Guide: Species, Pictures, Regions, and Risks](https://longsleeve.com/blog/tick-identification): What a tick looks like up close: eight legs on nymphs and adults, six on larvae, size by life stage, engorged ticks, and the bugs people mistake for ticks. - [Vector-Borne Disease in the U.S.: CDC Counts, Ticks, Mosquitoes](https://longsleeve.com/blog/vector-borne-disease-numbers): CDC case-count data for U.S. vector-borne disease from 2001 to 2023, including ticks, mosquitoes, Lyme disease, reporting limits, and regional concentration. - [West Nile Virus in NYC 2026: Case Counts, Spray Dates, Prevention](https://longsleeve.com/blog/west-nile-virus-nyc): NYC Health data read October 2, 2026: 29 West Nile neuroinvasive cases and 1,769 positive mosquito pools. Borough numbers, spray status, prevention. - [West Nile Virus: Culex Mosquitoes, Symptoms, Season, Prevention](https://longsleeve.com/blog/west-nile-virus): How West Nile virus spreads through Culex mosquitoes and birds, who is at higher risk, what CDC says about symptoms, seasonality, and bite prevention. - [When Is Mosquito Season? By Region, Temperature, and Rain](https://longsleeve.com/blog/mosquito-season-by-region): Mosquito season by U.S. region, temperature, rainfall, and disease timing, with health-department guidance on when activity starts, peaks, and ends. - [When Is Tick Season? Months, Nymphs, Adults, and Regions](https://longsleeve.com/blog/tick-season-when): When tick season starts and peaks in the U.S., including CDC guidance on April through September activity, spring nymphs, fall adults, winter risk, and regional differences. - [Why Mosquitoes Bite Some People More: CO2, Odor, Heat, Color](https://longsleeve.com/blog/why-mosquitoes-bite-some-people): Why mosquitoes bite some people more than others, based on studies of carbon dioxide, skin odor chemistry, heat, clothing color, pregnancy, beer, and blood type claims. - [Why No-See-Um Bites Itch So Much, and How to Treat Them](https://longsleeve.com/blog/no-see-um-bites): No-see-um bites itch because the midge cuts the skin and leaves saliva in the wound. What causes the itch, how long bites last, and how to treat them. ## Facts - Active: picaridin 20% - Protection: up to 14 hours against mosquitoes and ticks; up to 8 hours against biting flies, black flies, gnats, chiggers, sand flies, and no-see-ums (registered claim) - EPA Reg. No. 101457-1 - Fragrance-free lotion, 100 mL, nine ingredients, all disclosed - Contact: drew@longsleeve.com ## Full text - [llms-full.txt](https://longsleeve.com/llms-full.txt): complete plain-text content of every page above, single file ## Markdown twins Every page above is also served as clean Markdown at the same path with a .md extension, for example https://longsleeve.com/blog/picaridin-vs-deet.md and https://longsleeve.com/facts.md. Each file carries the title, the description, a Source: URL, and the full body with tables intact. ## The Repellent Index Every skin-applied insect repellent in EPA's consumer database (631 products, 9 actives, manufacturer-submitted protection times), mirrored with a fetch date and full methodology: https://longsleeve.com/repellent-index (HTML, full table is static markup) - [Repellent statistics](https://longsleeve.com/repellent-index/statistics): original computed statistics on all 631 EPA-registered skin repellents, with downloadable JSON/CSV dataset https://longsleeve.com/repellent-index.md (Markdown) https://longsleeve.com/repellent-index.json (JSON) https://longsleeve.com/repellent-index.csv (CSV) Cite as: The Repellent Index, longsleeve.com/repellent-index, data from EPA. ## Product comparisons 138 standalone comparison pages, each showing an EPA-registered product beside Longsleeve Repellent using EPA's database and both federal labels: https://longsleeve.com/repellent-index/ (HTML) and .md (Markdown twin) The full list is linked from https://longsleeve.com/repellent-index