Dual-Phase Oral Care Composition for Peroxide Shelf-Life Stability
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Solution Overview
Problem
Existing oral care compositions, such as mouthwashes and dentifrices, face challenges with compounds degrading at a rate that compromises their commercially reasonable shelf-life stability, limiting their effectiveness and usability.
Innovation Solution
A dual phase composition system with separate vessels containing hydrogen peroxide and an activation composition, where the activation composition includes sodium bicarbonate, xylitol, sorbitol, glycerin, and water, which are combined just prior to use to enhance stability and effectiveness.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If compounds are used in aqueous oral care compositions, then they provide oral care benefits, but they degrade at a rate that compromises shelf-life stability
Solution Approach 1:
The composition is divided into two separate phases: a hydrophobic phase containing the active compound and a hydrophilic phase containing water and excipients. This segmentation prevents direct contact between water and the unstable compound during storage, thereby maintaining shelf-life stability while enabling oral care benefits when the phases are combined during use.
Solution Approach 2:
A hydrophobic carrier or encapsulating material acts as an intermediary between the active compound and water. This intermediary protects the compound from water-induced degradation during storage, allowing the compound to remain stable on the shelf while still being delivered effectively to the oral cavity when the composition is applied.
2Reliability
If compounds are protected from water to maintain stability, then shelf-life is improved, but bioavailability and effectiveness are reduced
Solution Approach 1:
The composition transitions from a static separated state during storage to a dynamic mixed state during use. The two phases are designed to mix upon application to the oral cavity, allowing the active compound to become bioavailable and effective only when needed, while remaining protected during storage.
Solution Approach 2:
The active compound is pre-loaded into the hydrophobic phase or encapsulation structure during manufacturing, but its release and interaction with water is delayed until the moment of use. This preliminary positioning ensures the compound is ready for bioavailability activation exactly when applied to the oral cavity.
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 dual phase system maintains stability and efficacy by preventing premature reaction, allowing for enhanced shelf-life and improved bioavailability of active ingredients when mixed, providing effective oral care benefits like antimicrobial action and tooth whitening.
Implementation Method 1
hydrogen peroxide solution comprises: from 1% to 3% hydrogen peroxide by weight of the hydrogen peroxide solution
Implementation Method 2
a dual phase composition system with separate vessels containing hydrogen peroxide and an activation composition, where the activation composition includes sodium bicarbonate
Data Source
AI summary
A dual phase oral care composition is disclosed herein comprising hydrogen peroxide and an activation composition.