Rinse-off Composition for Hair Structure Improvement

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Solution Overview

Problem

There is a need for cosmetic products that effectively reduce hair loss and improve hair structure, particularly by increasing hair diameter or cross-section and enhancing keratin expression, especially for age-related hair thinning.

Innovation Solution

A topically applicable rinse-off composition containing sandal pentanol, caffeine, at least one C10-C18 fatty acid, a surfactant, and a cosmetically acceptable solvent, applied to the scalp to improve hair structure and reduce hair loss.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If conventional hair care products are used, then basic hair cleaning and conditioning are achieved, but they fail to effectively reduce hair loss and improve hair structure

Engineering Contradiction:

Improvehair loss reduction effectivenessVSAvoidcomposition complexity

Core Design Contradiction:

ReliabilityVSDevice complexity

Solution Approach 1:

The patent combines multiple active ingredients (sandal pentanol, caffeine, C10-C18 fatty acids) with surfactants and solvents into a single integrated rinse-off composition that simultaneously addresses hair loss reduction and hair structure improvement, eliminating the need for separate treatments

Inventive Principle:

Principle #5Merging (Combining)

Solution Approach 2:

The invention uses a composite formulation containing sandal pentanol (0.01-10% wt), caffeine (0.01-10% wt), C10-C18 fatty acids (0.01-5% wt), surfactants (5-30% wt), and solvents (45-94.97% wt), where each component contributes specific functions to achieve both hair loss reduction and structural improvement

Inventive Principle:

Principle #40Composite materials

2Shape

If products claim to improve hair structure by increasing diameter, then hair thickness may be enhanced, but without proven efficacy in reducing hair loss

Engineering Contradiction:

Improvehair diameterVSAvoidhair loss reduction

Core Design Contradiction:

ShapeVSReliability

Solution Approach 1:

The rinse-off composition is designed to perform multiple functions simultaneously: it cleanses hair (surfactant function), reduces hair loss (sandal pentanol and caffeine action), and improves hair structure by increasing diameter (fatty acid penetration and keratin reinforcement), making a single product universally effective for multiple hair concerns

Inventive Principle:

Principle #6Universality (Multi-functionality)

3Shape

If intensive treatments are applied to improve hair structure, then hair diameter may increase, but the treatment time and frequency requirements increase

Engineering Contradiction:

Improvehair cross-sectionVSAvoidtreatment duration

Core Design Contradiction:

ShapeVSLoss of time

Solution Approach 1:

The composition is designed as a rinse-off product that leverages the user's regular washing routine, requiring no additional time investment beyond normal shampooing. The active ingredients work during the brief contact time of rinsing, and the fatty acids continue to penetrate and strengthen hair structure over subsequent days without requiring repeated intensive applications

Inventive Principle:

Principle #25Self-service

Data Source

PatentEP4545063A1Cosmetical use of a topically applicable rinse-of composition (RC)

Publication Date: 2025.04.30 WELLA GERMANY GMBH

AI summary

The present invention relates to the cosmetic use of a topically applicable rinse-off composition (RC) comprising as components (A) sandal pentanol (3-methyl-5-(2,2,3-trimethylcyclopent-3-en-1-yl)pentan-2-ol)and /or one or more sandal pentanol analog(s), (B) caffeine, (C) at least one C10-C18 fatty acid and/or salts thereof, (D) at least one surfactant, and (E) at least one cosmetically acceptable solvent for (i) improving hair structure, and (ii) hair loss reduction. In another aspect the present invention relates to a non-therapeutic method for (i) improving hair structure, and (ii) hair loss using the topically applicable rinse-off composition (RC).