Emulsifier-free hydroxy acid gel cream composition

A technology of cosmetic composition and hydroxy acid, which is applied in the direction of medical preparations, cosmetics, and cosmetic preparations containing active ingredients, and can solve problems such as adverse effects of product efficacy, stickiness, and dirty skin

Active Publication Date: 2021-11-30
LOREAL SA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Of course, reduced amounts of hydroxy acids may adversely affect the efficacy of the product in favor of a better sensory experience
Also, the inclusion of e

Method used

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  • Emulsifier-free hydroxy acid gel cream composition
  • Emulsifier-free hydroxy acid gel cream composition
  • Emulsifier-free hydroxy acid gel cream composition

Examples

Experimental program
Comparison scheme
Effect test

Embodiment approach

[0041] According to various embodiments, the composition comprises one or a combination of hydroxy acids selected from alpha-hydroxy acids and beta-hydroxy acids. In some specific embodiments, the composition includes at least one or more alpha-hydroxy acids. In some embodiments, the total amount of hydroxy acids includes up to but not more than about 6% hydroxy acids. In other embodiments, the composition includes at least about 20% and at most about 30% hydroxy acid. In other embodiments, the composition includes from about 6% to about 20% hydroxy acid. In some embodiments, the composition includes from about 6% to about 20% of an alpha-hydroxy acid or combination of alpha-hydroxy acids. In some embodiments, the composition includes from about 6% to about 20% of an alpha-hydroxy acid or combination of alpha-hydroxy acids and up to about 2% of a beta-hydroxy acid.

[0042] According to the invention, the term "alpha-hydroxy acid" is understood to mean a carboxylic acid in ...

Embodiment 1

[0080] Example 1: Evaluation of Thickened Compositions Incorporating Hydroxy Acids Without Emulsifiers

[0081] A series of thickeners, particularly low pH, highly electrolyte compatible thickeners, were screened for their ability to thicken an aqueous system containing 10% glycolic acid adjusted to pH 4 with sodium hydroxide. Thickeners include raw material ingredients (RMI) of 1 to 6 listed in Table 1 below, and selected from Polyacrylate Crosspolymer-6, Ammonium Polyacryloyldimethyltaurate, Aristoflex HMS, and Pemulen EZ4U other thickeners. After confirming that compositions with high hydroxy acids can be formulated in the absence of emulsifiers, a subset of thickeners was selected for further evaluation to provide an ideal emulsifier-free gel-cream combination with higher hydroxy acid content thing.

Embodiment 2

[0082] Example 2: Formulation of Compositions Containing High Glycolic Acid at Low pH in the Absence of Emulsifiers

[0083] After the tests carried out under Example 1, thickeners 1, 2, 4 and 5 were further used to formulate a composition with a gel-cream framework.

[0084] Raw material ingredients (RMI) used in the composition of Table 1;

[0085]

[0086]

[0087]A series of thickeners, particularly low pH, high electrolyte compatible thickeners, were screened for their ability to thicken an aqueous system containing 10% emollient oil and 14.4% glycolic acid, which was diluted with sodium hydroxide to The pH was adjusted to 4. The experimental design showed that up to 10% of each α-hydroxy acid (glycolic acid) could be incorporated individually using hydroxyethyl acrylate / sodium acryloyldimethyltaurate copolymer (Sepinov EMT), or in combination with the established The low-pH, highly electrolyte-compatible thickeners combine with each other to co-incorporate up to ...

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Abstract

An emulsifier-free composition includes in a water phase a hydroxy acid system that includes alpha hydroxy, a blend of low pH, high electrolyte compatible thickeners and in an oily phase one or a combination of emollient oils. The composition has a pH in the range from about 1 to about 5.0 and is essentially free of emulsifiers and comprises a gel cream architecture.

Description

[0001] Cross References to Related Applications [0002] This patent application claims U.S. Patent Application Serial No. 16 / 427,085, entitled "EMULSIFIER-FREE HYDROXY ACID GEL CREAM COMPOSITION," filed May 30, 2019 , the disclosure of said US patent application is incorporated by reference as if fully rewritten herein. technical field [0003] The present disclosure relates to skin care compositions providing hydroxyacids at low pH values ​​below 5.0, which compositions have a gel-cream texture that shear thins into a serum-like fluid without emulsifiers. Background technique [0004] Various cosmetic products are formulated with components that require relatively low pH and high salt content. These cosmetics include products containing hydroxy acids, such as alpha-hydroxy acids and beta-hydroxy acids, examples of which are glycolic acid and salicylic acid, respectively. Benefits provided by these products include softer, smoother and firmer skin, an overall even skin to...

Claims

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Application Information

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IPC IPC(8): A61K8/04A61K8/365A61K8/81A61K8/92A61Q19/00
CPCA61Q19/00A61K8/365A61K8/8152A61K8/042A61K8/92A61K2800/33A61K2800/48A61K8/8158
Inventor J·J·菲戈D·陈M·巴里亚
Owner LOREAL SA
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