It has a pleasant fragrance and provides protection against mosquitoes, horse flies and other biting flies for up to four hours. These are chemicals or formulations that keep ectoparasites off your skin. They are applied dermally and stop mosquitos , ticks and horse flies etc. Ectoparasites are insects like mosquitos and biting flies, or arachnids like ticks and mites, which suck human blood through the skin. Repellents are not insecticides , because they do not kill parasites and pests, they only repel them.
Insects always find the smallest gap in the armour.
Notice the period of action of the various products for the different insects. Unlike sun creams, whose effect only lasts for the given period, repellents' effects can be lengthened. Do not apply to children under two years of age. More than a nuisance - little vampires that can seriously harm your health You hardly notice it, a little prick which leaves an irritating itch, possibly a rash or minor inflammation. The symptoms usually disappear after a short while, and are therefore regarded by most people as just an unpleasant little nuisance.