MSN: 10 Mosquito Repellents That Are Worth Your Money (and 2 That Aren’t)

Sawyer Ultra 30 Insect Repellent

"DEET remains the standard repellent and is very effective," says Grayson C. Brown, Ph.D., director of the public health entomology laboratory at the University of Kentucky. According to Brown, a mosquito repellent with a 30 percent DEET formulation is sufficient. "Higher concentrations do not give proportionately higher levels of repellency," he says. Of all of the active ingredients found in standard mosquito repellent, Brown says DEET has the broadest range of effectiveness. It also keeps ticks at bay. Prefer to keep it chemical free? Try these plants that are natural mosquito repellents.

Full list originally from Rachel Sokol on MSN's website.