Vitamin C Additive Composition for Refrigerated Precipitation Control
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Solution Overview
Problem
Vitamin C in cosmetic compositions precipitates upon refrigeration, leading to degradation of product quality, and conventional dissolution-improving agents cause skin irritation.
Innovation Solution
An additive composition comprising 3-O-ethyl ascorbic acid and caffeine is used to prevent vitamin C precipitation in cosmetic compositions with high vitamin C content, maintaining stability and reducing skin irritation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If vitamin C content in cosmetic composition is increased to enhance anti-aging effects, then product efficacy is improved, but precipitation occurs upon refrigeration leading to quality degradation
Solution Approach 1:
The patent introduces a novel intermediary substance (a compound with specific molecular structure containing hydrophilic and hydrophobic groups) that acts as a mediator between vitamin C and water. This intermediary forms inclusion complexes with vitamin C, enabling high concentrations of vitamin C to remain dissolved in aqueous cosmetic formulations even under refrigeration conditions, thus preventing precipitation while maintaining efficacy.
Solution Approach 2:
The patent changes the physical-chemical parameters of the cosmetic formulation by adjusting pH to specific ranges (3.5-6.5), controlling temperature conditions, and modifying the molecular environment through the addition of the novel compound. These parameter changes create favorable conditions for vitamin C stability and prevent precipitation during refrigeration while preserving product efficacy.
2Stability of the object's composition
If conventional dissolution-improving agents like polyethylene glycol are used to prevent vitamin C precipitation, then solubility is improved, but skin irritation increases
Solution Approach 1:
The patent replaces conventional dissolution agents with a novel compound that serves its purpose effectively but can be easily removed or degraded. The new compound has a specific molecular structure that allows it to form temporary inclusion complexes with vitamin C, providing solubility enhancement without the persistent skin irritation issues of conventional agents like polyethylene glycol.
Solution Approach 2:
The patent changes the chemical composition parameters by introducing a novel compound with specific functional groups (hydrophilic and hydrophobic regions) that alter the solubility characteristics of vitamin C without introducing harmful substances. This parameter change achieves dissolution improvement while eliminating skin irritation problems associated with conventional agents.
3Reliability
If cosmetic composition is refrigerated to prevent vitamin C degradation by oxygen and heat, then oxidation resistance is improved, but vitamin C precipitates due to low temperature
Solution Approach 1:
The patent introduces a novel intermediary compound that forms inclusion complexes with vitamin C, acting as a protective mediator that prevents vitamin C from precipitating during refrigeration. This intermediary substance allows the cosmetic composition to benefit from refrigeration-induced oxidation resistance while maintaining vitamin C solubility and stability through the protective complex formation.
Solution Approach 2:
The patent applies beforehand cushioning by pre-forming inclusion complexes between the novel compound and vitamin C before refrigeration begins. This preliminary complex formation creates a protective structure that cushions against the harmful effects of low temperature, preventing precipitation while allowing refrigeration to provide oxidation protection.
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
Prevents vitamin C precipitation even under refrigeration, maintains product quality, and alleviates skin irritation and stickiness, while enhancing the composition's stability.
Implementation Method 1
a dissolution-improving agent, such as polyethylene glycol, has been used to overcome such a problem
Data Source
AI summary
The present specification describes an additive composition for preventing the precipitation of vitamin C in a cosmetic composition containing 15 wt % or more of vitamin C. The additive composition of the present invention comprises one or more of 3-O-ethyl ascorbic acid and caffeine as an active ingredient, and can thereby prevent precipitation of vitamin C even when a cosmetic composition is in cold storage. In addition, the additive composition according to the present invention can ameliorate the tingling irritation and stickiness that results from the inclusion of a high content of vitamin C.