Miscible Cosmetic Kit for Stable Active Agent Delivery
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Solution Overview
Problem
Existing cosmetic compositions with multiple active agents face challenges in solubilization and stabilization, often leading to instability, separation, and incompatibility, which affects their efficacy and application.
Innovation Solution
A kit comprising two or more separately contained cosmetic compositions, each with specific viscoelastic properties, including oil in water emulsions, water in silicone emulsions, and anhydrous compositions, that are miscible upon mixing, allowing for stable and homogeneous application.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Quantity of substance
If high amounts of active agents are included in cosmetic compositions, then cosmetic benefits are enhanced, but solubilization and stabilization become difficult
Solution Approach 1:
The cosmetic composition is divided into multiple distinct phases (oil phase, aqueous phase, silicone phase) that can be separately formulated and stabilized. Each phase contains specific active agents appropriate to its chemical environment, allowing high concentrations of actives without compromising overall composition stability.
Solution Approach 2:
The invention creates a composite cosmetic system combining multiple immiscible or partially miscible phases (oils, waters, silicones) that maintain their individual stability characteristics while working together synergistically. Each phase acts as a separate stabilized system with its own emulsifiers and stabilizers.
2Adaptability or versatility
If cosmetic compositions with different active agents are combined, then cosmetic benefits are diversified, but miscibility becomes challenging
Solution Approach 1:
Different active agents are segregated into appropriate phases based on their solubility characteristics. Oil-soluble actives go to the oil phase, water-soluble actives to the aqueous phase, and silicone-compatible actives to the silicone phase, preventing incompatibility issues while maintaining diversified benefits.
Solution Approach 2:
Emulsifiers and surfactants act as intermediary substances at the interfaces between phases, facilitating controlled interaction and preventing direct incompatibility reactions between different active agents while maintaining phase separation and overall miscibility.
3Reliability
If stabilizers and solubilizers are added to cosmetic compositions, then active agent stability is improved, but visual coagulation and phase separation occur
Solution Approach 1:
Stabilizers and solubilizers are used locally within specific phases rather than uniformly throughout the entire composition. Each phase contains the stabilizers appropriate to its chemical nature, preventing unwanted interactions that would cause coagulation or separation while maintaining local stability of active agents.
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 a stable, miscible mixture that delivers enhanced skin benefits such as improved elasticity, collagen and elastin production, hydration, and anti-aging effects, addressing individual skin needs through consumer-specific formulations.
Implementation Method 1
The cosmetic compositions include surprisingly high amounts of various active agents, are stable, and miscible with one another. The two or more cosmetic compositions are chosen from: (i) oil in water emulsions comprising at least 40 wt.% of water and about 1 to about 20 wt.% of an oil phase
Implementation Method 2
Active agents provide a myriad of cosmetic benefits to skin but have historically been difficult to solubilize and stabilize, especially in high amounts
Data Source
AI summary
The instant disclosure relates to a kit comprising two or more separately contained cosmetic compositions that are miscible with one another upon mixing, wherein the two or more cosmetic composition have: (a) a viscosity of at least 1,800 cPs or a storage modulus (G') greater than the loss modulus (G'') for a viscosity below 1,800 cPs; and (b) a maximum yield stress of 9,000 Pa; and wherein the two or more cosmetic compositions are chosen from: (i) oil in water emulsions; (ii) water in silicone emulsions; and (iii) anhydrous emulsions. Methods for treating skin with the kits and/or the cosmetic compositions are also disclosed.