Multi-Phase Cleansing Composition for Skin Barrier Repair
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Solution Overview
Problem
Current skin condition treatments using leave-on products are inefficient in delivering zinc pyrithione effectively, as they have limited residence time on the skin and can irritate compromised skin, while rinse-off products struggle to balance cleansing and deposition of active agents.
Innovation Solution
A multi-phase cleansing composition comprising a structured cleansing phase with sodium trideceth sulfate and a benefit phase with glyceryl monooleate and petrolatum, which includes zinc pyrithione, to improve skin barrier properties and deposit actives effectively.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Duration of action of moving object
If leave-on products are used to treat skin conditions, then the active agents can remain on the skin for extended periods, but this adds an additional step to the everyday routine and reduces compliance
Solution Approach 1:
The patent combines the treatment function with the cleansing function into a single rinse-off product. The multi-phase composition delivers zinc pyrithione and benefit agents during the cleansing routine, eliminating the need for separate leave-on treatment applications while maintaining therapeutic effectiveness through the synergistic interaction of phases during the cleansing process.
2Ease of operation
If rinse-off cleansing compositions are used to treat skin conditions, then compliance with everyday routine is improved, but the ability to effectively deposit active agents on the skin is reduced
Solution Approach 1:
The composition is divided into multiple distinct phases (cleansing phase, benefit phase, and zinc pyrithione phase) that remain physically separated until application. This segmentation allows each phase to perform its specific function optimally - the cleansing phase removes dirt and oil, while the benefit and zinc pyrithione phases deposit therapeutic agents effectively during the same cleansing routine.
Solution Approach 2:
The patent uses a composite multi-phase system combining different material types (surfactants, lipids, and zinc pyrithione) that work synergistically. The combination of cleansing agents with benefit agents and zinc pyrithione in a single rinse-off product enables both effective cleansing and substantial deposition of active agents on the skin.
3Productivity
If conventional rinse-off products are used, then cleansing function is provided, but the synergistic enhancement of zinc pyrithione activity is not achieved
Solution Approach 1:
The benefit phase acts as an intermediary that enhances the delivery and activity of zinc pyrithione. The lipid-based benefit phase facilitates the deposition and retention of zinc pyrithione on the skin, creating a synergistic effect that boosts the antimicrobial activity of zinc pyrithione beyond what would be achieved by the cleansing phase alone.
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 significant bacterial reduction and improves skin barrier function without irritation, providing a synergistic effect that enhances the activity of zinc pyrithione, potentially reducing the need for drug treatments and improving skin hydration.
Implementation Method 1
a cleansing phase comprising an anionic surfactant
Implementation Method 2
comprising zinc pyrithione... significant bacterial reduction
Implementation Method 3
a benefit phase comprising a benefit agent... improves skin barrier function
Data Source
AI summary
A method of treating a skin condition including applying a rinse-off multi-phase cleansing composition including a cleansing phase including an anionic surfactant and zinc pyrithione and a benefit phase including a benefit agent.