Patents

Salt-Activated Water-Resistant Cosmetics

US Patent No. 11,135,149 B2 awarded to L’Oréal.

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By: Christine Esposito

Editor-in-Chief

US Patent No. 11,135,149 B2 (Susan Halpern, Brian Bodnar, Nicholas David Stebbins); L'Oréal has patented a cosmetic composition comprising a salt activatable component combination that contains a holoside compound selected from the group consisting of methylcellulose, hydroxypropylmethylcellulose (HPMC), hydroxypropylcellulose (HPC) cellulose gum (CG), carrageenan, xanthan gum, and combinations thereof; an alginate compound; and at least one cosmetic active agent comprising at least one UV filter. The composition is devoid of synthetic film formers. The holoside compound and the alginate compound constitute a water resistant film precursor.  The exposure of the cosmetic composition to a salt activator activates the salt activatable component combination such that the water resistant film precursor converts to a water resistant film and increases a water resistance of the composition.

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