Two-Phase Facial Oil Composition for Transparent Active Delivery
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Solution Overview
Problem
Existing oil-based facial care products struggle to incorporate polar, water-soluble compounds without clouding, while maintaining transparency, which is crucial for consumer preference.
Innovation Solution
A cosmetic two-phase preparation with a hydrophilic phase containing water-soluble conditioning agents and a lipid phase with natural vegetable oil, using specific preservatives like benzethonium chloride and caprylyl glycol to maintain transparency and separation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Quantity of substance
If multiple cosmetic raw materials are combined in a complex composition, then the functional effects are enhanced, but the stability of the preparation is compromised
Solution Approach 1:
The patent employs film-forming polymers and emulsifiers as intermediary substances that mediate between the oil phase and water phase, stabilizing the complex composition of multiple cosmetic raw materials. These intermediaries create a stable network structure that prevents phase separation while maintaining the functional benefits of diverse ingredients.
Solution Approach 2:
The invention uses composite material systems combining multiple polymer types (film-forming polymers, emulsifiers, thickening agents) in specific ratios to create a stable preparation. The composite structure allows different materials to perform complementary functions while maintaining overall composition stability despite the presence of multiple active ingredients.
2Stability of the object's composition
If conventional emulsifiers and thickening agents are used, then the preparation stability is improved, but the skin compatibility and irritation potential are worsened
Solution Approach 1:
The patent changes the chemical parameters of emulsifiers and thickening agents by selecting biocompatible alternatives with specific molecular structures. The film-forming polymers and emulsifiers are chosen to have reduced irritation potential while maintaining their stabilizing functions, thus changing the compositional parameters to achieve both stability and skin compatibility.
Solution Approach 2:
The invention uses naturally derived, biodegradable polymers and emulsifiers that are gentler on skin compared to conventional synthetic alternatives. These bio-based materials provide sufficient stabilization for the preparation's shelf life while being less irritating to skin, effectively replacing harsh conventional agents.
3Quantity of substance
If high concentrations of active ingredients are used, then the cosmetic effects are enhanced, but the formulation complexity and manufacturing difficulty increase
Solution Approach 1:
The patent segments the formulation into distinct functional modules: oil phase, water phase, film-forming polymer network, and emulsifier system. Each module is optimized independently and then combined, which simplifies the manufacturing process despite high active ingredient concentrations. The segmented approach allows for systematic formulation development and easier quality control.
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 solution ensures transparent, oil-based facial care products that provide enhanced nourishment and barrier support by maintaining transparency and effective skin hydration.
Implementation Method 1
a film-forming polymer in a concentration of from 0.01 % to 10 % by weight, based on the total weight of the facial care preparation, in particular in a concentration of from 0.1 % to 5 % by weight, based on the total weight of the facial care preparation
Implementation Method 2
emollient oils, in particular plant oils, animal oils or synthetic oils
Data Source
AI summary
The invention relates to a cosmetic two-phase preparation which has two separate phases that can be differentiated visually into an upper and a lower phase. The hydrophilic phase contains at least one water-soluble care substance and a polyol, and the lipid phase contains at least one natural plant oil. Prior to application, the two phases are mixed by shaking such that a visually largely homogeneous phase is produced which is applied onto the skin.