Back to results
US 12,746,193 B2Granted
Cosmetic composition
AssigneeAjinomoto Co., Inc.
InventorEriko Yamaguchi
Life of this patent
Estimating the term…
Abstract
Compositions for cosmetics, containing (A) at least one polyaspartic acid or a salt thereof, (B) zinc pyrrolidonecarboxylate, and (C) at least one aliphatic hydroxycarboxylic acid having 1 to 10 carbon atoms or a salt thereof are useful as premixed compositions used for blending polyaspartic acid or a salt thereof and zinc pyrrolidonecarboxylate stably and conveniently in cosmetic compositions.
Claims10
A composition for cosmetics, comprising:
- (A) at least one polyaspartic acid or a salt thereof;
- (B) zinc pyrrolidonecarboxylate;
- and
- (C) at least one aliphatic hydroxycarboxylic acid having 1 to 10 carbon atoms or a salt thereof, wherein
- a content of the (A) at least one polyaspartic acid or a salt thereof is 2.5 mass % to 13 mass % as a content converted to that of a free form thereof, based on the total mass of the composition,
- a content of the (B) zinc pyrrolidonecarboxylate is 1 mass % to 12 mass %, based on the total mass of the composition,
- a ratio of a content of component (B) (WB) to a content of component (A) (WA) (WB/WA) is 0.12 to 2, and
- a ratio of a content of component (B) (Wp) to a content of component (C) (WC) (WB/WC) is 0.45 to 3.
5 more elements
Dependencies are inferred from the claim text.