Lice repellant composition
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.
Claims15
A method to repel lice, comprising applying to a human or an animal susceptible to lice infestation an effective amount to repel but not kill lice of a terpenoid or a mixture of terpenoids in an acceptable carrier for topical application to a human or an animal, wherein the terpenoid is selected from the group consisting of a terpene-ol other than linalool, terpene ester, essential oil containing at least 40% terpene-ol or terpene-ester, cytral, nerol, ionone, dihydrocarvone, and pullegone, wherein the composition does not contain any non-terpenoid insecticides or repellants.
A method to repel lice, comprising applying to a human or an animal susceptible to lice infestation an effective amount to repel but not kill lice of a composition comprising linalool, essential oil containing at least 40% terpene-ol or terpene ester, and a terpene aldehyde in a topical carrier.
Dependencies are inferred from the claim text.