Picaridin is generally about as effective as DEET as a mosquito and tick repellant, but without the nasty odor and greasy feeling on the skin. DEET has a tende

Picaridin is generally about as effective as DEET as a mosquito and tick repellant, but without the nasty odor and greasy feeling on the skin. DEET has a tendency to damage synthetic clothing such as spandex and rayon, and at higher concentrations can actually melt plastic and paint. Even lower concentrations can mess up your sunglasses.