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US 12,115,238 B2Granted
Cosmetic composition in multiple emulsion formulation
AssigneeAmorepacific Corporation
InventorsHeejung Yang, Byungfhy Suh, Soonae An, Joonyoung Hwang
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Abstract
A cosmetic composition containing a multiple emulsion formulation is provided. The multiple emulsion formulation contains droplets including an inner phase and an outer phase and an outermost phase, and an outermost phase. The inner phase may be an oil phase and the outer phase may be an aqueous phase, and the outermost phase includes silicon-based oil. The cosmetic composition may provide excellent formulation stability due to the distribution of the droplets very close to the outermost phase.
Claims25
A cosmetic composition of a multiple emulsion formulation, comprising:
- droplets comprising an oil phase as an inner phase and an aqueous phase as an outer phase;
- and
- an outermost phase comprising a silicon-based oil,
- wherein said cosmetic composition satisfies following (iii), (i) and (iii), (ii) and (iii), or (i) to (iii):
- (i) a distance between two adjacent droplets distributed in the formulation is 5 μm or less, and the distance is calculated for droplets with an average particle size of 2 μm to 50 μm, the distance between the droplets being calculated by the following Equation 1:
- Distance between the droplets=(A)−(r+R) Equation 1
- where in Equation 1, A represents a distance between centers of the two adjacent droplets of the cosmetic composition, and r and R represent respective radius of the two adjacent droplets measured on the same line as A;
- (ii) in a microscopy image obtaining by taking a photograph of the cosmetic composition, a sum of areas of the droplets distributed in the formulation with respect to a total area of the microscopy image is 80% or more and less than 100%, the microscopy image being taken at a magnification of 1000;
- and
- (iii) a total amount of the droplets comprising the inner phase and the outer phase is greater than 80 wt. % to less than 100 wt. % with respect to a total weight of the cosmetic composition,
- wherein the outer phase comprises a polyol, and one or more of a thickener and a solvent,
- wherein an amount of the polyol satisfies one or more of 1 wt. % to 30 wt. % with respect to the total weight of the cosmetic composition;
- and 5 wt. % to 35 wt. % with respect to a total weight of the outer phase, and
- wherein an amount of the solvent satisfies one or more of 3 wt. % to 10 wt. % with respect to the total weight of the cosmetic composition;
- and 5 wt. % to 12 wt. % with respect to a total weight of the outer phase.
12 more elements
Dependencies are inferred from the claim text.