Lice-repellant compositions
AssigneeClilco, Ltd.
InventorsMeir Eini, Dov Tamarkin
Life of this patent
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Abstract
It has been discovered that terpenoids, especially terpenoid-alcohols (terpene-ols) and terpenoid-esters, and some aldehydes and ketones of terpenes, in a concentration of between 0.01% and 50% by weight, most preferably between 0.01% and 10%, are very good lice repellents. The active agent can be combined with a pharmaceutically and/or cosmetically acceptable carrier for topical administration, such as an aqueous or alcohol solution, a gel, cream, or a powder, and administered with or without additives such as other insect repellents, agents increasing solubility or delaying release of active agents, antimicrobials, antioxidants and fragrances. Examples demonstrate efficacy in in vitro and in in vivo testing.
Claims12
A method to repel lice, comprising applying to a human or an animal susceptible to lice infestation an effective amount of a terpenoid or a mixture of terpenoids in an acceptable carrier for topical application to a human or an animal to repel lice without toxicity to the human or animal, wherein the terpenoid is selected from the group consisting of terpene-ols not including linalool, terpene-esters, unsaturated terpene, terpenoids containing an aldehyde functional group, and terpenoids containing a keytone functional group.
Dependencies are inferred from the claim text.