Stabilizing Magnolia Bark Extract in Cosmetics

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Solution Overview

Problem

Magnolia Officinalis Bark Extract, containing active ingredients like magnolol and honokiol, is not temperature-stable in cosmetic preparations, leading to discoloration and precipitation at higher storage temperatures, making it challenging to incorporate into O/W emulsions effectively.

Innovation Solution

Incorporating Magnolia Officinalis Bark Extract with oils having a polarity of 20 mN/m to 30 mN/m, specifically ethylhexyl esters of fatty acids, such as ethylhexyl cocoate and ethylhexyl stearate, to stabilize the extract and prevent heat-induced discoloration in cosmetic preparations, particularly O/W emulsions.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If Magnolia Officinalis Bark Extract is incorporated into cosmetic preparations at higher storage temperatures, then the extract can be used in the preparation, but the extract precipitates and causes discoloration

Engineering Contradiction:

Improvetemperature stability of Magnolia Officinalis Bark ExtractVSAvoidstability of Magnolia Officinalis Bark Extract in preparation

Core Design Contradiction:

ReliabilityVSStability of the object's composition

Solution Approach 1:

The patent uses ethylhexyl esters of fatty acids as intermediary substances to mediate between the Magnolia Officinalis Bark Extract and the cosmetic preparation matrix. These esters act as co-solvents that facilitate the solubility and stability of the extract's active ingredients (magnolol and honokiol) in the preparation, preventing precipitation and discoloration at elevated temperatures while maintaining extract functionality

Inventive Principle:

Principle #24Intermediary (Mediator)

2Reliability

If Magnolia Officinalis Bark Extract is used in cosmetic preparations, then skin care benefits are provided, but the extract causes discoloration and precipitation at higher temperatures

Engineering Contradiction:

Improvefunctional stability of Magnolia Officinalis Bark ExtractVSAvoidheat-induced discoloration and precipitation

Core Design Contradiction:

ReliabilityVSObject-affected harmful factors

Solution Approach 1:

The patent changes the chemical composition parameters of the cosmetic preparation by incorporating specific ethylhexyl esters of fatty acids. This parameter change modifies the solubility characteristics and thermal stability of the preparation system, allowing the Magnolia Officinalis Bark Extract to remain stable and dissolved at higher temperatures without discoloration or precipitation

Inventive Principle:

Principle #35Parameter changes

Solution Approach 2:

The patent creates a composite cosmetic preparation system that combines Magnolia Officinalis Bark Extract with ethylhexyl esters of fatty acids. This composite formulation leverages the synergistic interaction between the extract and the esters to achieve enhanced thermal stability and prevent the harmful effects of heat-induced discoloration and precipitation

Inventive Principle:

Principle #40Composite materials

Applied Scientific Principles

This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.

Function Achieved in This Case

The use of oils with specific polarity stabilizes Magnolia Officinalis Bark Extract and its components, preventing temperature and color changes, ensuring the extract remains effective and stable in cosmetic formulations.

Implementation Method 1

the use of oils with specific polarity stabilizes Magnolia Officinalis Bark Extract and its components, preventing temperature and color changes

Methodology Applied

Scientific EffectPolarity interaction:

Data Source

PatentEP2783676B1Colour-stable cosmetic preparation

Publication Date: 2017.03.22 BEIERSDORF AG

AI summary

Cosmetic preparation containing a) Magnolia Officinalis Bark Extract and b) one or more oils with a polarity of 20 mN/m to 30 mN/m.