Silicone-Free Cleansing Composition Balancing Makeup Removal and Irritation
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Solution Overview
Problem
Existing skin cleansers often compromise on cleansing efficiency or cause irritation when trying to avoid using silicones, particularly on sensitive skin areas like the face and eyes, and may leave a greasy residue due to reliance on either dry or oily emollients alone.
Innovation Solution
A cleansing composition combining 8-12% dry and oily emollients, with 85-90% water, avoiding silicone-containing materials, to effectively remove cosmetics like mascara, foundation, and lipstick without irritation or greasy residue.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If high amounts of dry emollients are used as the sole cleansing component, then cleansing efficiency is improved, but skin and eye irritation increases
Solution Approach 1:
The patent combines dry emollients (e.g., dicaprylyl carbonate) with oily emollients (e.g., caprylic/capric triglyceride) in a balanced formulation. This merging of complementary cleansing agents allows the composition to achieve effective makeup removal while reducing individual ingredient concentrations, thereby minimizing skin and eye irritation.
2Object-affected harmful factors
If compositions including silicones are used, then non-irritation is achieved, but the use of silicones is avoided in this invention
Solution Approach 1:
The patent changes the formulation parameters by eliminating silicones and instead optimizing the ratio and selection of emollient ingredients. The composition achieves non-irritating properties through careful selection of skin-compatible emollients and balanced concentrations, demonstrating that silicone-free formulations can also provide gentle cleansing.
3Object-affected harmful factors
If oily emollients are used alone, then non-irritating cleansing is achieved, but greasy residue is left on the skin
Solution Approach 1:
The patent merges dry emollients with rapid evaporation properties (e.g., dicaprylyl carbonate) and oily emollients with moisturizing properties (e.g., caprylic/capric triglyceride). This combination allows the formulation to provide gentle, non-irritating cleansing while the dry emollient component prevents greasy residue by evaporating quickly after cleansing.
4Adaptability or versatility
If the composition is free of silicones, then natural formulation is achieved, but cleansing efficacy may be compromised
Solution Approach 1:
The patent uses a composite formulation combining multiple emollient types (dry and oily) with complementary cleansing mechanisms. The dry emollients provide solubility for makeup removal, while oily emollients provide lubrication and moisturization. This composite approach achieves effective cleansing without relying on silicones, maintaining formulation purity while preserving efficacy.
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 provides optimal cleansing efficacy, reduces skin and eye irritation, and avoids greasiness, while being free of silicones, making it suitable for sensitive skin areas.
Implementation Method 1
a combination of a dry emollient and an oily emollient
Implementation Method 2
a hydrophilic phase and a lipophilic phase comprising a combination of esters
Data Source
AI summary
A personal care composition including at least one dry emollient and one oily emollient, where the personal care composition is free of silicone or silicone containing materials.