The Procter Gamble Company

Caroline W Cardin

David W Peter

Clint A Markham

Ovicidal/pediculicidal anti-lice compositions comprising a mixture of actives wherein the ratio of synthetic pyrethroids to natural pyrethrins is from about 6:1 to about 10:1. Said active mixtures are incorporated into hair treatment compositions, such as shampoos, lotions and conditioners, which are stable at high storage temperatures, effective, safe and easy to use.

Anti-lice treatment compositions

The present invention represents ovicidal/pediculicidal anti-lice active containing compositions containing a combination of alkanol synergizers selected from the group consisting of phenyl C.sub.2 -C.sub.6 alkanols, phenyl C.sub.2 -C.sub.6 diols, and mixtures thereof, with quaternary ammonium salts, long chain (CH.sub.12 -C.sub.22 fatty amines, and mixtures thereof. The compositions include hair care compositions which are storage stable at high temperatures.

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Cincinnati, OH, United States of America

Caroline W Cardin