Cosmetic or external preparation for skin
A cosmetic formulation with precise amounts of ascorbic acid, glycerin, and alcohol, along with controlled water content, addresses stability and usability issues, enhancing ascorbic acid's effectiveness and skin benefits.
HK20134901APending Publication Date: 2026-07-10KOSE CORPORATION
Patent Information
- Authority / Receiving Office
- HK · HK
- Patent Type
- Applications
- Current Assignee / Owner
- KOSE CORPORATION
- Filing Date
- 2025-12-25
- Publication Date
- 2026-07-10
AI Technical Summary
Technical Problem
Existing cosmetic formulations containing ascorbic acid face challenges in maintaining long-term stability, skin smoothness, spreadability, and moisturizing feel due to oxidative decomposition and formulation issues.
Method used
A cosmetic or topical skin agent comprising specific amounts of ascorbic acid, glycerin, a polyol, and a monohydric lower alcohol, with controlled water content and optional addition of a water-soluble compound, formulated to inhibit ascorbic acid precipitation and enhance stability and skin smoothness.
Benefits of technology
The formulation achieves excellent long-term stability, skin smoothness, and spreadability while providing a non-sticky and moisturizing feel, ensuring effective continuous use of ascorbic acid.
✦ Generated by Eureka AI based on patent content.
Abstract
The purpose of this invention is to provide a cosmetic or topical skin agent that exhibits excellent performance in inhibiting the precipitation of ascorbic acid, maintaining the long-term stability of ascorbic acid, providing smoothness to the skin with continuous use, and exhibiting good spreadability, and further possesses excellent moisturizing properties and non-stickiness. A cosmetic or topical skin agent comprises the following ingredients (A) to (D): (A) 1-10% by mass of ascorbic acid, (B) 25-65% by mass of glycerin, (C) a polyol (excluding ingredient (B)), and (D) 10-30% by mass of a monohydric lower alcohol, with a water content of less than 10% by mass or no water.
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