Antimicrobial liquid composition and use thereof as a preservative activator in cosmetic products
AssigneeRoquette Freres
InventorsGéraldine Louvet-Pommier, Léon Mentink, Daniel Wils, Nicolas Tesse
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Abstract
The present application relates to the use of an antimicrobial composition comprising essentially ingredients of natural origin as a preservative activator in cosmetic products. Due to the selection of the components of this antimicrobial composition, it has very broad compatibility with most formulations of cosmetic products, and may in particular be integrated into these formulations without destabilizing them or having to modify them, while maintaining the transparency of said cosmetic products.
Claims7
A method for activating cosmetic product preservatives, comprising the step of incorporating an antimicrobial liquid composition into a cosmetic product containing preservatives, wherein the antimicrobial liquid composition comprises:
- Cymbopogon essential oil in a mass percentage ranging from 0.1% to 10% by dry weight,
- caprylyl/capryl glucoside in a mass percentage ranging from 1% to 40% by dry weight,
- gluconic acid in a mass percentage of from 10% to 70% by dry weight, and
- sodium gluconate in a mass percentage ranging from 1% to 50% by dry weight, the percentages by weight being expressed in relation to the total weight of the liquid antimicrobial composition;
- wherein the preservatives are chosen from benzyl alcohol, potassium sorbate, phenoxyethanol, and sodium benzoate or a mixture thereof.
A cosmetic product comprising:
- at least one preservative selected from sodium benzoate, potassium sorbate, phenoxyethanol, benzyl alcohol or a mixture thereof, wherein the preservative is present up to 2.5% by gross weight relative to the total weight of the cosmetic product,
- and at least 1% by gross weight of an antimicrobial liquid composition relative to the total weight of the cosmetic product, wherein the antimicrobial liquid composition comprises:
- essential oil of one of the species of the genus Cymbopogon is present in a mass percentage ranging from 0.1% to 10% by dry weight,
- caprylyl/capryl glucoside is present in a mass percentage ranging from 1% to 40% by dry weight,
- gluconic acid is present in a mass percentage of from 10% to 70% by dry weight,
- sodium gluconate is present in a mass percentage ranging from 1% to 50% by dry weight,
- water has a mass percentage ranging from 20% to 75% by weight, the percentages by weight being expressed in relation to the total weight of the liquid antimicrobial composition.
Dependencies are inferred from the claim text.