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US 12,673,018 B2Granted
Hyaluronate skin-penetrating cosmetic
AssigneeShiseido Company, Ltd.
InventorsMika Yoshimura, Anna Okishima, Takashi Oka, Hiroko Shimizu
Life of this patent
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Abstract
To provide a hyaluronate skin-penetrating cosmetic that allows a hyaluronate to penetrate into the skin without a complicated step such as composite formation of a hyaluronate. A hyaluronate skin-penetrating cosmetic of the present disclosure contains a hyaluronate and an amphoteric surfactant.
Claims9
A hyaluronate skin-penetrating cosmetic, comprising
- a hyaluronate and an amphoteric surfactant,
- wherein the weight-average molecular weight of the hyaluronate is 300,000 or more, and wherein the hyaluronate does not contain hyaluronate derivatives, and
- wherein the amphoteric surfactant comprises at least one selected from the group consisting of betaine-type amphoteric surfactants, amino acid-type amphoteric surfactants, sulfonic acid-type amphoteric surfactants, sulfate-type amphoteric surfactants, and lecithin.
Dependencies are inferred from the claim text.