Walnut Oil–Solubilized Ash Bark Cosmetic Composition

Resolve Bottlenecks,
Find Innovative Solutions
Generate Solutions

Solution Overview

Problem

Existing cosmetic compositions fail to effectively address skin aging, reduce carbonylation of skin proteins, improve skin barrier function, enhance hydration, and provide comprehensive anti-inflammatory, antioxidant, and anti-microbial benefits, particularly due to suboptimal ingredient ratios and solubility issues.

Innovation Solution

A specific formulation comprising 1 to 30 wt% Fraxinus Excelsior Ash bark extract, 60 to 80 wt% Juglans Regia walnut seed oil, 5 to 30 wt% Polyglyceryl-4 oleate, and 0.1 to 1 wt% Tocopherol, optimized through a process involving microwave and ultrasound treatment with a co-extractant, enhances the extraction and stability of polyphenols, providing improved anti-aging and skin health benefits.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If Fraxinus excelsior bark extract and juglans regia seed oil are used in existing cosmetic compositions, then moisturizing and nourishing effects are provided, but anti-aging effects and skin barrier restoration are insufficient

Engineering Contradiction:
Improveanti-aging effectVSAvoidskin barrier restoration capability
Core Design Contradiction:
ReliabilityVSAdaptability or versatility

Solution Approach 1:

The patent optimizes the concentration parameters of key ingredients: Fraxinus excelsior bark extract (0.01-10 wt%), juglans regia seed oil (5-50 wt%), and polyglyceryl-4 oleate (1-20 wt%). These specific parameter ranges maximize polyphenol extraction efficiency and skin penetration, thereby enhancing anti-aging effects and skin barrier restoration capabilities simultaneously

Inventive Principle:
Principle #35Parameter changes

Solution Approach 2:

Polyglyceryl-4 oleate is introduced as a co-extractant and solubilizing agent that mediates between the hydrophobic polyphenols in ash bark and the aqueous environment. This intermediary substance improves the solubility and bioavailability of active ingredients, enhancing both anti-aging and skin barrier restoration effects

Inventive Principle:
Principle #24Intermediary (Mediator)

2Productivity

If polyphenols are extracted from Fraxinus excelsior bark using conventional methods, then extraction is achieved, but extraction efficiency and polyphenol stability are insufficient

Engineering Contradiction:
Improvepolyphenol extraction efficiencyVSAvoidpolyphenol stability
Core Design Contradiction:
ProductivityVSStability of the object's composition

Solution Approach 1:

The patent performs preliminary optimization of extraction parameters including using polyglyceryl-4 oleate as a pre-solubilizing agent, controlling pH levels, and adjusting temperature before the main extraction process. This preliminary action enhances polyphenol solubility and stability, leading to higher extraction efficiency and better preservation of active compounds

Inventive Principle:
Principle #10Preliminary action

Solution Approach 2:

The patent uses a composite extraction system combining polyglyceryl-4 oleate (a non-ionic surfactant) with juglans regia seed oil. This composite material system synergistically enhances polyphenol extraction efficiency while maintaining polyphenol stability through the combined properties of the surfactant and oil

Inventive Principle:
Principle #40Composite materials

3Quantity of substance

If conventional extraction methods are used without co-extractants, then extraction process is simple, but polyphenol solubility and extraction yield are low

Engineering Contradiction:
Improvepolyphenol content in extractVSAvoidextraction process complexity
Core Design Contradiction:
Quantity of substanceVSDevice complexity

Solution Approach 1:

Polyglyceryl-4 oleate serves as an intermediary co-extractant that facilitates polyphenol solubilization without requiring complex extraction equipment. This single additive component significantly boosts polyphenol content in the extract while maintaining relatively simple process complexity

Inventive Principle:
Principle #24Intermediary (Mediator)

Solution Approach 2:

The patent modifies the chemical parameter of the extraction system by adding polyglyceryl-4 oleate, which changes the solubility characteristics of the system. This parameter change dramatically increases polyphenol extraction yield without requiring complex multi-step processes or specialized equipment

Inventive Principle:
Principle #35Parameter changes

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 composition achieves enhanced anti-aging effects by reducing skin protein carbonylation, restoring the skin barrier, improving hydration, and offering anti-inflammatory, antioxidant, and anti-microbial benefits, with a synergistic effect from the unique ingredient ratios and extraction process.

Implementation Method 1

a process involving microwave and ultrasound treatment with a co-extractant

Methodology Applied
Scientific EffectMicrowave heating: Microwave Radiation

Implementation Method 2

a process involving microwave and ultrasound treatment with a co-extractant

Methodology Applied
Scientific EffectUltrasound: Ultrasound

Implementation Method 3

an extract of Fraxinus Excelsior Ash bark solubilized in Juglans Regia walnut seed oil and polyglyceryl-4 oleate

Methodology Applied
Scientific EffectSurfactant solubilization: Surfactant

Implementation Method 4

Tocopherol... 0,1 to 1 wt%

Methodology Applied
Scientific EffectAntioxidant protection: Oxidation

Data Source

PatentEP4635472A1Cosmetic composition comprising an extract of fraxinus excelsior ash bark solubilized in juglans regia walnut seed oil and polyglyceryl-4 oleate and tocopherol
Publication Date: 2025.10.22 SOC DE RECH COSMETIQUE
  • EP4635472A1 patent drawingFigure 1
  • EP4635472A1 patent drawingFigure 2
  • EP4635472A1 patent drawingFigure 3~4

AI summary

The present invention concerns an intermediary cosmetic composition, characterized in that it comprises: - (a1) 1 to 30 wt% of an extract of Fraxinus Excelsior Ash bark, and - (b1) 60 to 80 wt% of Juglans Regia walnut seed oil, and - (c1) 5 to 30 wt% of polyglyceryl-4 oleate, and - (d1) 0,1 to 1 wt% of Tocopherol. It also concerns a final cosmetic product composition and a non-therapeutic cosmetic process for skin care and a non-therapeutic use of the final cosmetic product for topical application.