Multiphase Cleanser Boosts Skin Chroma via Segmented Phases

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Solution Overview

Problem

Current skin cleansing methods fail to effectively increase skin chroma and hydration, leading to dull and dehydrated skin, which affects overall skin health and appearance.

Innovation Solution

A multiphase personal cleansing composition with a hydrophobic benefit agent is applied to the skin, improving hydration levels and reducing dry skin grade, as measured by Corneometer units and dry skin grade improvements, to enhance skin chroma and overall skin health.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Quantity of substance

If conventional skin cleansing methods are used, then skin cleansing is achieved, but skin chroma increases insufficiently and hydration is not effectively improved

Engineering Contradiction:
Improveskin chromaVSAvoidhydration improvement
Core Design Contradiction:
Quantity of substanceVSReliability

Solution Approach 1:

The cleansing composition is divided into multiple phases: a cleansing phase containing surfactants for skin cleaning, and a benefit phase containing hydrophobic benefit agents for hydration and chroma enhancement. This segmentation allows each phase to perform its specific function effectively, with the cleansing phase removing impurities and the benefit phase providing hydration and chroma improvement, thereby resolving the contradiction between achieving cleansing and improving skin chroma/hydration

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The invention uses a composite multiphase system combining different functional materials: surfactants for cleansing, hydrophobic benefit agents for hydration, and specific formulations that work synergistically. This composite approach enables simultaneous achievement of skin cleansing, hydration improvement, and chroma enhancement, overcoming the limitations of single-phase conventional cleansers

Inventive Principle:
Principle #40Composite materials

2Quantity of substance

If conventional cleansing compositions are used, then cleaning action is provided, but skin hydration and chroma enhancement are insufficient

Engineering Contradiction:
Improveskin hydrationVSAvoidchroma enhancement effectiveness
Core Design Contradiction:
Quantity of substanceVSEase of manufacture

Solution Approach 1:

The invention optimizes specific parameters of the benefit agents, including hydrophobicity levels, molecular weights, and concentrations within the multiphase system. By carefully controlling these parameters, the composition achieves effective skin chroma enhancement and hydration while maintaining manufacturability and product stability, resolving the contradiction between hydration improvement and chroma enhancement effectiveness

Inventive Principle:
Principle #35Parameter changes

Data Source

PatentEP2838494B1Improving skin appearance with increase in skin chroma
Publication Date: 2018.01.31 PROCTER & GAMBLE CO
  • EP2838494B1 patent drawingFigure 1
  • EP2838494B1 patent drawingFigure 2
  • EP2838494B1 patent drawingFigure 3

AI summary

Methods of increasing skin chroma include applying a personal cleansing composition to the skin having a hydrophobic benefit agent.