# US 2025/0143979 A1 · Water-in-oil type solid stick composition containing a large amount of water phase > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2025/0143979 A1 - Document ID: US20250143979A1 - Status: Published application - Kind: A1 - Application number: 18/933,337 - Filed: 2024-10-31 - Published: 2025-05-08 - Earliest claimed: 2023-11-02 - Assignees: Amorepacific Corporation - Applicants: Amorepacific Corporation - Inventors: Shinbeom KANG; Byungryol PAIK; Byungfhy SUH; Jongsuk LEE - Web page: https://patentgrep.com/patent/US20250143979A1 ## CPC - A61K 8/0229: {Sticks} - A61K 8/064: {Water-in-oil emulsions, e.g. Water-in-silicone emulsions} - A61K 8/19: containing inorganic ingredients - A61K 8/31: Hydrocarbons - A61K 8/345: {containing more than one hydroxy group} - A61K 8/368: with carboxyl groups directly bound to carbon atoms of aromatic rings - A61K 8/37: Esters of carboxylic acids - A61K 8/498: {having 6-membered rings or their condensed derivatives, e.g. coumarin} - A61K 8/585: {Organosilicon compounds} - A61Q 19/00: Preparations for care of the skin - A61Q 19/08: Anti-ageing preparations - A61K 2800/30: Characterized by the absence of a particular group of ingredients - A61K: PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES (devices or methods specially adapted for bringing pharmaceutical products into particular physical or administering forms A61J3/00; chemical aspects of, or use of materials for deodorisation of air, for disinfection or sterilisation, or for bandages, dressings, absorbent pads or surgical articles A61L; soap compositions C11D) - A61Q: SPECIFIC USE OF COSMETICS OR SIMILAR TOILETRY PREPARATIONS ## Abstract The present disclosure discloses a water-in-oil type solid stick composition containing a large amount of water phase that can obtain a stable formulation while containing an acidic active ingredient, and can have a water-bursting effect immediately upon applying to the skin by containing a large amount of water phase. According to the present disclosure, the solid stick formulation can be stabilized without pH restriction, and is also excellent in terms of safety because PEG and silicone oil are not used. ## Claims ### Claim 1 A water-in-oil type solid stick composition containing a large amount of water phase, wherein the solid stick composition comprises an oil phase and a water phase, wherein the oil phase comprises a silicone emulsifier containing an ethoxy glucoside derivative, the water phase comprises an acidic ingredient, and the water phase is 35 wt % or more based on the total weight of the solid stick composition. ### Claim 2 (depends on 1) The water-in-oil type solid stick composition containing a large amount of water phase according to claim 1, wherein a pH of the composition is 3 to 6. ### Claim 3 (depends on 1) The water-in-oil type solid stick composition containing a large amount of water phase according to claim 1, wherein the silicone emulsifier containing the ethoxy glucoside derivative is present in an amount of 0.001 to 10 wt % based on the total weight of the composition. ### Claim 4 (depends on 1) The water-in-oil type solid stick composition containing a large amount of water phase according to claim 1, wherein the silicone emulsifier containing the ethoxy glucoside derivative comprises at least one selected from caprylyl dimethicone ethoxy glucoside and dimethicone ethoxy glucoside. ### Claim 5 (depends on 1) The water-in-oil type solid stick composition containing a large amount of water phase according to claim 1, wherein the oil phase further comprises at least one selected from the group consisting of hydrocarbon oil, a wax, and an additional emulsifier. ### Claim 6 (depends on 5) The water-in-oil type solid stick composition containing a large amount of water phase according to claim 5, wherein the carbon number of the hydrocarbon oil is 20 or less. ### Claim 7 (depends on 5) The water-in-oil type solid stick composition containing a large amount of water phase according to claim 5, wherein the hydrocarbon oil comprises at least one selected from the group consisting of isododecane and dicaprylyl carbonate. ### Claim 8 (depends on 5) The water-in-oil type solid stick composition containing a large amount of water phase according to claim 5, wherein the hydrocarbon oil is present in an amount of 5 to 12 wt % based on the total weight of the composition. ### Claim 9 (depends on 5) The water-in-oil type solid stick composition containing a large amount of water phase according to claim 5, wherein a melting point of the wax is 50° C. or more. ### Claim 10 (depends on 5) The water-in-oil type solid stick composition containing a large amount of water phase according to claim 5, wherein the wax is present in an amount of 5 to 10 wt % based on the total weight of the composition. ### Claim 11 (depends on 5) The water-in-oil type solid stick composition containing a large amount of water phase according to claim 5, wherein the additional emulsifier comprises at least one of a silicone-based emulsifier and a polyglyceryl-based non-silicone-based emulsifier. ### Claim 12 (depends on 11) The water-in-oil type solid stick composition containing a large amount of water phase according to claim 11, wherein the silicone-based emulsifier comprises at least one of lauryl polyglyceryl-3-polydimethylsiloxyethyl dimethicone and polyglyceryl-3-polydimethylsiloxyethyl dimethicone. ### Claim 13 (depends on 11) The water-in-oil type solid stick composition containing a large amount of water phase according to claim 11, wherein the polyglyceryl-based non-silicone-based emulsifier comprises at least one selected from the group consisting of polyglyceryl-5-polyricinoleate, polyglyceryl-4-isostearate, polyglyceryl-3-polyricinoleate, polyglyceryl-2-dipolyhydroxystearate, diisostearoyl polyglyceryl-3-dimer dilinoleate, polyglyceryl-4-diisostearate/polyhydroxystearate/sebacate, polyglyceryl-2-isostearate, polyglyceryl-3-diisostearate, and polyglyceryl-2-isostearate/dimer dilinoleate copolymer. ### Claim 14 (depends on 5) The water-in-oil type solid stick composition containing a large amount of water phase according to claim 5, wherein the additional emulsifier is present in an amount of 0.1 to 5 wt % based on the total weight of the composition. ### Claim 15 (depends on 1) The water-in-oil type solid stick composition containing a large amount of water phase according to claim 1, wherein the acidic ingredient comprises at least one selected from the group consisting of a polyhydroxy acid (PHA), a beta hydroxy acid (BHA), and an alpha hydroxy acid (AHA). ### Claim 16 (depends on 1) The water-in-oil type solid stick composition containing a large amount of water phase according to claim 1, wherein the acidic ingredient comprises at least one selected from the group consisting of gluconolactone, salicylic acid, glycolic acid, lactic acid, citric acid, ascorbic acid, ethyl ascorbic acid, succinic acid, and ferulic acid. ### Claim 17 (depends on 1) The water-in-oil type solid stick composition containing a large amount of water phase according to claim 1, wherein the acidic ingredient is present in an amount of 1 to 15 wt % based on the total weight of the composition. ### Claim 18 (depends on 1) The water-in-oil type solid stick composition containing a large amount of water phase according to claim 1, wherein the composition does not comprise a PEG-based surfactant and silicone oil. ### Claim 19 (depends on 1) The water-in-oil type solid stick composition containing a large amount of water phase according to claim 1, wherein the composition is a cosmetic composition.