3M Ultrathon Insect Repellent 12 Lotion

If you're going to be outdoors for long periods of time, reviews indicate that 3M Ultrathon Insect Repellent 12 Lotion is a good choice for insect repellent. The high concentration of DEET (34 percent) found in 3M Ultrathon helps it last for up to five hours. 3M Ultrathon uses a controlled-release form of DEET; the DEET is encapsulated in a polymer, which means the amount of chemical absorbed into the skin is limited, making it safer to use. As is the case with all products containing DEET, 3M Ultrathon is not recommended for use on babies and should be washed off after returning indoors. Products containing DEET can also damage plastic or painted surfaces. For those who prefer a DEET-free insect repellent, the picaridin-based Cutter Advanced (*est. $6 for 6 oz.) is effective for about 2.5 hours.

ConsumerReports.org provides one of the best reviews of 3M Ultrathon Insect Repellent 12 Lotion, comparing it with 17 other repellents. A report on eMedicine.com discusses a wide range of mosquito repellents (including 3M Ultrathon), while a field test by the Journal of Medical Entomology tests three DEET repellents (but offers no comparison to repellents with other ingredients). Finally, user reviews at Drugstore.com provide information not only about scent but also about how a number of products, including 3M Ultrathon, feel on the skin.