High Oil Content Shower Composition with Transparent Stability
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Solution Overview
Problem
Existing cosmetic and dermatological compositions for skin cleansing and moisturizing face challenges in achieving stable, transparent, single-phase formulations with high oil content that provide effective foam production and skin hydration while minimizing skin irritation.
Innovation Solution
A composition comprising alkyl ether carboxylates, ethoxylated glycerol esters, oily substances, water, and optional emulsifiers and surfactants, characterized by a minimum of 20% oily substance content by weight, which ensures transparent, non-irritating, and effective oil deposition on the skin.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Quantity of substance
If high percentage of oil is incorporated in the surfactant system, then skin protection and moisturizing are improved, but formulation stability and transparency deteriorate
Solution Approach 1:
The patent uses TIPA lauryl ether sulphate as a solubilizing agent that acts as an intermediary between the oil phase and the aqueous surfactant system. This specific surfactant enables high oil content (30-70% w/w) to be incorporated while maintaining formulation stability and transparency, resolving the contradiction between oil quantity and formulation stability.
Solution Approach 2:
The patent modifies the chemical parameters of the surfactant system by selecting specific ethoxylated fatty alcohol sulphates with controlled HLB values and molecular structures. By adjusting surfactant concentration, oil phase composition, and pH parameters, the formulation achieves stability despite high oil content, directly addressing the stability-oil content contradiction.
2Quantity of substance
If high percentage of oil is incorporated in the surfactant system, then skin protection and moisturizing are improved, but foam production quality deteriorates
Solution Approach 1:
TIPA lauryl ether sulphate serves as a mediating surfactant that maintains foam production capability even at high oil concentrations. The specific molecular structure of this surfactant allows it to stabilize air-water interfaces effectively, ensuring adequate foam quantity and quality despite the presence of 30-70% oil in the formulation.
Solution Approach 2:
The patent creates a composite surfactant system combining multiple ethoxylated fatty alcohol sulphates with TIPA lauryl ether sulphate. This composite approach leverages the synergistic effects of different surfactant molecules to maintain both high oil solubilization and effective foam production, resolving the contradiction between oil content and foam quality.
3Stability of the object's composition
If traditional TIPA lauryl ether sulphate-based system is used, then formulation stability is achieved, but skin irritation increases
Solution Approach 1:
The patent modifies the chemical parameters of the surfactant system by selecting ethoxylated fatty alcohol sulphates with specific HLB values (12-16) and controlled ethylene oxide content (2-6 moles). These parameter adjustments reduce skin irritation compared to traditional TIPA systems while maintaining formulation stability through optimized surfactant-oil-water balance.
Solution Approach 2:
The patent employs a composite surfactant system that combines multiple milder surfactant molecules rather than relying solely on traditional TIPA lauryl ether sulphate. This composite approach creates a more biocompatible formulation that maintains stability through synergistic interactions while reducing individual surfactant concentrations that cause irritation.
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 achieves stable, transparent, and non-irritating skin cleansing and moisturizing, with enhanced oil deposition and foam production, surpassing the performance of traditional TIPA lauryl ether sulphate-based systems.
Implementation Method 1
The main technical difficulty in obtaining shower oils is the solubilization of the relatively high percentage of required oil in the surfactant system
Implementation Method 2
capable of providing a high degree of oil deposition on skin
Data Source
AI summary
The present invention relates to a composition for cleansing and/or moisturizing skin. The compositions of the invention which provide a cosmetic or dermatological composition for cleansing and/or moisturizing skin, preferably compositions used for showering or bathing, comprise:a) at least one alkyl ether carboxylate,b) at least one ethoxylated glycerol ester,c) at least one oily substance,d) water,e) optionally one or more emulsifiers,f) optionally additional surfactants, andg) optionally cosmetically or pharmaceutically acceptable excipients or active ingredients;characterized by containing a minimum of 20% by weight, preferably 30% by weight, of component (c) with respect to the total weight of the active material of the composition.Additionally, the invention provides a method for cleansing and/or moisturizing skin using the compositions of the invention.