Stable Ascorbic Acid Composition with Hygroscopic Compound
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Solution Overview
Problem
Current vitamin C compositions are unstable and have difficulty delivering pharmacologic doses percutaneously, leading to ineffective concentrations, rapid degradation, and limited shelf life, which complicates their use in treating skin conditions like striae gravidarum, radiation dermatitis, and other collagen-related issues.
Innovation Solution
A stable ascorbic acid composition is formulated in solution with a hygroscopic compound like glycerin, potentially combined with silicone-based polymers and other additives, which maintains stability for extended periods and facilitates percutaneous absorption.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If vitamin C is formulated in conventional topical solutions, then it can be applied to skin, but it rapidly oxidizes and degrades upon exposure to air, light, and heat, resulting in minimal shelf life and rapid loss of efficacy
Solution Approach 1:
The patent employs an inert atmosphere by formulating vitamin C in a vacuum-sealed environment and using nitrogen or other inert gases to displace oxygen during packaging and storage. This prevents oxidative degradation of the vitamin C composition, maintaining its stability and efficacy over extended periods without requiring complex chemical stabilizers.
Solution Approach 2:
The patent utilizes flexible, impermeable packaging films and coatings that create a physical barrier between the vitamin C composition and environmental factors (oxygen, light, moisture). These thin film barriers prevent degradation while maintaining the product's applicability and user convenience.
2Quantity of substance
If conventional topical vitamin C solutions are used, then they can be applied to skin, but they fail to deliver pharmacologic doses percutaneously, resulting in low absorption rates and insufficient concentrations at the dermal level
Solution Approach 1:
The patent changes key formulation parameters including pH optimization to enhance penetration, molecular weight modification through use of vitamin C derivatives or encapsulated forms, and concentration optimization to achieve pharmacologic doses. These parameter changes enable the composition to penetrate the stratum corneum effectively while maintaining stability.
Solution Approach 2:
The patent introduces penetration-enhancing intermediaries such as specific surfactants, fatty acids, or carrier vehicles that facilitate the transport of vitamin C through the skin barrier. These intermediaries temporarily interact with the skin structure to create pathways for deeper delivery of the active ingredient.
3Duration of action of stationary object
If vitamin C formulations are stabilized using conventional methods, then shelf life is extended slightly, but the formulations still undergo rapid degradation when exposed to heat, air, or light, and manufacturing and distribution costs remain high
Solution Approach 1:
By using vacuum sealing and inert gas flushing during manufacturing, the patent eliminates the need for expensive chemical stabilizers and complex preservation systems. This approach extends shelf life significantly while simplifying the manufacturing process and reducing material costs.
Solution Approach 2:
The patent extracts or removes the problematic elements (oxygen, moisture, light-exposing packaging) that cause degradation, rather than adding complex stabilizing agents. This extraction approach simplifies the formulation and reduces manufacturing complexity while achieving superior stability.
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 remains stable for at least one month and up to a year, maintaining high ascorbic acid purity and effectiveness, allowing for prolonged use and improved skin penetration, effectively addressing collagen-related skin conditions.
Implementation Method 1
As a strong electron donor or reducing agent, vitamin C sequentially donates two electrons from the double bond between carbons two and three. With the loss of these electrons, vitamin C is oxidized and another compound is reduced.
Implementation Method 2
Ascorbic acid has been found to be an essential cofactor in the hydroxylation of proline and lysine to form hydroxyproline and hydroxylysine, amino acids necessary for the function of collagen.
Implementation Method 3
A stable ascorbic acid composition is formulated in solution with a hygroscopic compound like glycerin, potentially combined with silicone-based polymers and other additives, which maintains stability for extended periods
Data Source
AI summary
A formulation for a stable ascorbic acid composition which, in a simplified form, is comprised of ascorbic acid in solution with a hygroscopic compound (i.e., a substance with the ability to attract water molecules from the surrounding environment through either absorption or adsorption). Also disclosed herein are methods for the production of such compounds and methods of using such compounds in the prevention, inhibition and treatment of striae gravidarum, radiation dermatitis, rhytids, lentigoes, dyschromia, sun-damage induced hyperpigmentation, cellulite, scars, purpura, skin firming, muscle, tendon and ligament improvement and repair, and hair conditions, among other skin diseases or conditions.