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US 5,292,504 AGranted
Anti-lice treatment compositions
AssigneeThe Procter & Gamble Company
InventorsCaroline W. Cardin, David W. Peter
Life of this patent
Estimating the term…
Abstract
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.
Claims18
An ovicidal/pediculicidal hair care composition comprising:
- a) a synthetic pyrethroid selected from the group consisting of phenothrin, permethrin, and mixtures thereof;
- (b) a natural pyrethrin selected from the group consisting of esters of Cinerin I, Cinerin II, Jasmolin I, Jasmolin II, Pyrethrin I, and Pyrethrin II and mixtures thereof wherein Pyrethrin I and Pyrethrin II comprise about 70% of the said mixture;
- and
- (c) an acceptable liquid hair care vehicle;
- wherein the ratio of (a) to (b) is from about 6:1 to about 10:1.
2 more elements
Dependencies are inferred from the claim text.