Stable Emulsified Cosmetic Composition for Oxidation and Microbial Control

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Solution Overview

Problem

Cosmetic compositions face challenges related to instability, susceptibility to oxidation, and microbial contamination, compromising their efficacy and safety.

Innovation Solution

A stable emulsified cosmetic composition comprising a blend of emulsifiers, antioxidants, and antimicrobial agents, utilizing a green solvent (NADES) and phospholipids to enhance stability, moisturizing, and antimicrobial properties.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If cosmetic compositions use traditional formulations, then they can provide basic cosmetic functions, but they suffer from instability, oxidation susceptibility, and microbial contamination

Engineering Contradiction:
ImprovestabilityVSAvoidoxidation and microbial contamination
Core Design Contradiction:
ReliabilityVSObject-affected harmful factors

Solution Approach 1:

The patent applies this principle by using antioxidants to convert the harmful oxidative environment into a beneficial protective mechanism. The antioxidants scavenge free radicals and prevent oxidation, transforming the potentially damaging oxidative conditions into a controlled environment that enhances product stability and safety.

Inventive Principle:
Principle #22Blessing in disguise (Convert harm into benefit)

Solution Approach 2:

The patent employs antimicrobial agents as intermediaries between the cosmetic formulation and microbial contaminants. These agents act as protective mediators that prevent microbial contamination without directly contacting or reacting with the skin, thereby maintaining product stability and safety throughout the shelf life.

Inventive Principle:
Principle #24Intermediary (Mediator)

2Stability of the object's composition

If cosmetic compositions include stabilizing agents and preservatives, then stability improves, but the formulation complexity increases

Engineering Contradiction:
Improveemulsion stabilityVSAvoidformulation complexity
Core Design Contradiction:
Stability of the object's compositionVSDevice complexity

Solution Approach 1:

The patent applies parameter changes by optimizing the concentration ratios of emulsifiers, antioxidants, and antimicrobial agents. By carefully adjusting these parameters within specific ranges, the formulation achieves maximum stability with minimal ingredient levels, thereby reducing overall formulation complexity while maintaining enhanced stability.

Inventive Principle:
Principle #35Parameter changes

Solution Approach 2:

The patent creates a composite cosmetic formulation that integrates multiple functional ingredients (emulsifiers, antioxidants, antimicrobial agents) into a unified stable system. This composite approach allows the different components to work synergistically, providing enhanced stability without requiring separate stabilization systems, thus managing formulation complexity efficiently.

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 composition provides long-lasting stability, antioxidant benefits, and antimicrobial properties, suitable for various cosmetic applications on skin, hair, nails, and scalp.

Implementation Method 1

They mimic the lamellar structure of the extracellular matrix and form a protective layer, preventing water loss from the skin

Methodology Applied
Scientific EffectLamellar structure formation:

Implementation Method 2

a green solvent, which can be a naturally occurring product, a mixture of them or a NAtural Deep Eutectic Solvent (NADES), serving as a solvent itself or to extract bioactive compounds

Methodology Applied
Scientific EffectSolvation: Solvation

Implementation Method 3

Cosmetic compositions often face challenges related to instability, susceptibility to oxidation

Methodology Applied
Scientific EffectOxidation: Oxidation

Implementation Method 4

The present disclosure relates to a stable emulsified cosmetic composition

Methodology Applied
Scientific EffectEmulsion: Emulsion

Implementation Method 5

a carefully selected blend of emulsifiers

Methodology Applied
Scientific EffectSurface tension reduction: Surface Tension

Data Source

PatentEP4603151A1Stable cosmetic composition, methods and uses thereof
Publication Date: 2025.08.20 SOLFARCOS SOLUÇÕES FARMACEUTICAS E COSMETICAS LDA
  • EP4603151A1 patent drawingFigure 1~2
  • EP4603151A1 patent drawingFigure 3~4
  • EP4603151A1 patent drawing

AI summary

A stable emulsified cosmetic composition comprising a bioactive mixture, a phospholipid as an emulsifier, an oil component and at least one diol with enhanced stability, moisturizing effect, antioxidant benefits, and antimicrobial properties for application on skin, hair, nails, and/or scalp. The composition comprises a carefully selected blend of emulsifiers, antioxidants, and antimicrobial agents, ensuring the stability of the emulsion over time and promoting a suitable treatment for beauty healthcare.