Stimuli-Responsive Chromogenic Compositions for Skin Exposure Feedback
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Consumers often over- or underestimate the exposure time to stimuli when using skincare and cosmetic products with microcurrent stimulation devices, leading to suboptimal treatment effects.
Innovation Solution
Development of stimuli-responsive chromogenic compositions that change color in response to external stimuli such as mechanical rubbing, heat, or electric fields, using non-toxic pigments like phthalocyanine blue, β-carotene, or Campo® Siddha Sikkappu Thool, integrated with cosmetic carriers, which remain stable during storage and do not stain the skin.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If consumers use skincare products with microcurrent stimulation devices for a fixed period, then the treatment can be standardized, but consumers may over- or underestimate the actual exposure time leading to suboptimal treatment effects
Solution Approach 1:
The patent applies chromogenic pigments that undergo reversible color changes in response to mechanical stress, heat, or electric field exposure. The color transformation provides visual feedback to consumers about the actual stimulus exposure level, enabling them to accurately perceive whether they have received sufficient treatment without relying on memory or estimation of time duration.
2Measurement precision
If chromogenic pigments are added to cosmetic compositions to provide stimulus feedback, then treatment effectiveness can be monitored, but the pigments may stain the skin or be toxic
Solution Approach 1:
The patent selects and modifies pigment parameters including particle size (0.1-10 μm), concentration (0.01-5%), and chemical composition to achieve chromogenic response while minimizing skin staining. The pigments are formulated at optimized concentrations and particle sizes that provide sufficient color change visibility for stimulus detection while remaining cosmetically elegant and non-staining on skin.
Solution Approach 2:
The patent creates composite cosmetic compositions combining chromogenic pigments with cosmetic carriers and adjuvants. The composite formulation ensures pigment dispersion, prevents aggregation, and maintains skin compatibility while providing the desired chromogenic feedback mechanism.
3Illumination intensity
If chromogenic compositions are made with high pigment concentration for visible color change, then stimulus detection becomes more apparent, but the compositions may become unstable during storage especially at elevated temperatures
Solution Approach 1:
The patent optimizes pigment concentration parameters (0.01-5%) and particle size (0.1-10 μm) to achieve sufficient color visibility while maintaining composition stability. The optimized formulation ensures that pigments remain dispersed and stable during storage even at elevated temperatures, preventing premature aggregation or degradation that would compromise both stability and color change performance.
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 compositions provide visible and distinguishable color changes, ensuring optimal treatment duration without skin staining, and maintain performance over extended storage periods.
Implementation Method 1
stimuli-responsive chromogenic compositions that change from a first color to a second color upon application to the skin of a subject and exposure to a stimulus including, but not limited to, heat, light, mechanical rubbing, exposure to electric current
Implementation Method 2
stimuli-responsive chromogenic compositions that change from a first color to a second color upon application to the skin of a subject and exposure to a stimulus including, but not limited to, heat, light, mechanical rubbing, exposure to electric current
Data Source
AI summary
In one aspect, the disclosure relates to stimuli-responsive chromogenic compositions that change from a first color to a second color upon application to the skin of a subject and exposure to a stimulus including, but not limited to, heat, light, mechanical rubbing, exposure to electric current, and the like. The compositions include a non-toxic pigment and a cosmetic carrier and do not stain the skin. Additionally, the compositions are stable when stored, even under conditions of elevated temperature. Also disclosed are methods of making the same and methods of treating skin conditions using the same. This abstract is intended as a scanning tool for purposes of searching in the particular art and is not intended to be limiting of the present disclosure.