Retinoid Skin Care Composition With Modified Starch Heat Stability
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Solution Overview
Problem
Existing skin care compositions incorporating retinoids face stability issues at high temperatures due to interactions with ingredients, leading to potential phase separation.
Innovation Solution
A skin care composition comprising a combination of nonionic and anionic modified starches in a specific weight ratio of at least 7:1 with retinoids, along with fatty esters, to stabilize the formulation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If retinoids are incorporated into skin care composition, then skin repair and renewal effects are improved, but product stability at high temperature deteriorates due to interactions with ingredients
Solution Approach 1:
The patent introduces modified starches as intermediary substances that interact with retinoids to prevent direct harmful interactions between retinoids and other composition ingredients. The modified starches act as stabilizing agents that mediate the system, allowing retinoids to maintain their skin repair benefits while preventing temperature-induced degradation and phase separation.
Solution Approach 2:
The patent employs composite material strategy by combining modified starches with retinoids and other skin care ingredients in specific formulations. This composite approach creates a synergistic system where the modified starches provide structural stability and prevent phase separation, while retinoids deliver their biological activity, achieving both stability and efficacy.
2Stability of the object's composition
If modified starches are added to stabilize retinoid composition, then composition stability is improved, but device complexity increases due to additional ingredients and ratio control
Solution Approach 1:
The patent applies parameter changes by specifying optimal concentration ranges and weight ratios for modified starches relative to retinoids. By defining specific parameter windows (amounts and ratios), the patent simplifies the formulation process despite adding multiple ingredients, as these defined parameters guide manufacturers to achieve stability without requiring complex optimization experiments.
Data Source
AI summary
Disclosed is a skin care composition comprising retinoid, a first modified starch and a second modified starch, wherein the weight ratio of the total modified starches to the retinoid is at least 7:1.