Variable-Color Cosmetic Capsules for Functional Ingredient Stability
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Solution Overview
Problem
Existing cosmetic compositions that change color upon application have limitations in long-term stability of functional ingredients due to their chemical instability, particularly when exposed to moisture, light, and heat, and there is a need for a composition that provides both aesthetic and functional benefits while maintaining ingredient stability.
Innovation Solution
A capsule coloration cosmetic composition comprising a first formulation with capsules made of a mixed gum including acacia gum and at least one of gelatin and agar, and a second formulation with an oil-soluble ingredient, where the capsules contain an oil-based emollient, ensuring the oil-soluble ingredient is absorbed only upon mixing, thus maintaining stability until use.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If functional ingredients are included in cosmetic formulations, then aesthetic and functional effects are enhanced, but long-term stability deteriorates due to chemical instability and susceptibility to deterioration by moisture, light, heat, and oxygen
Solution Approach 1:
The cosmetic composition is divided into two separate formulations: a first formulation containing capsules with functional ingredients and an oil-based emollient, and a second formulation containing water-based ingredients. This segmentation prevents direct contact between water and the chemically unstable functional ingredients, thereby maintaining long-term stability while preserving aesthetic and functional effects.
Solution Approach 2:
An oil-based emollient is introduced as an intermediary substance to encapsulate and protect the functional ingredients. The oil-based emollient acts as a barrier between the functional ingredients and harmful environmental factors (moisture, light, heat, oxygen), preventing deterioration while allowing the ingredients to remain stable during storage and distribution.
2Ease of manufacture
If colorants are included inside capsules, then aesthetic effect is enhanced, but the capsules only change color after breaking, limiting the visual appeal during application
Solution Approach 1:
The capsule formulation incorporates colorants that change color when the capsules are applied to the skin. The color change occurs upon contact with the second formulation or environmental conditions during application, providing real-time visual feedback and enhancing aesthetic appeal without requiring the capsules to break. This maintains both manufacturing simplicity and visual attractiveness during use.
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 enhances long-term stability and aesthetic appeal by allowing the oil-soluble ingredient to be absorbed into the capsules just before use, increasing reliability and consumer desire, while maintaining the functionality and color change effect.
Implementation Method 1
the oil-soluble ingredient is absorbed into the capsules and the color of the capsules is changed
Data Source
AI summary
The present invention relates to a capsule coloration cosmetic composition in which, when in use, the color of capsules is changed. The present invention provides a capsule coloration cosmetic composition comprising: a first formulation comprising capsules; and a second formulation comprising a colored oil-soluble ingredient, wherein the outer membranes of the capsules comprise a mixed gum comprising: acacia gum; and at least one of gelatin and agar, and wherein an oil-based emollient is included inside the capsules.