Cosmetic Composition Odor Suppression Using Ascorbic Acid
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Solution Overview
Problem
Cosmetic compositions containing polyglycerol fatty acid esters and water often generate bad odors over time due to oxidation degradation, despite the use of antioxidants like tocopherol and BHT, which are ineffective in suppressing the odor from polyglycerol fatty acid esters.
Innovation Solution
Incorporating ascorbic acid or its derivatives, along with water-soluble compounds such as citric acid and trehalose, into the cosmetic composition to suppress the generation of bad odor, while maintaining the composition's cleansing power and skin compatibility.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If polyglycerol fatty acid ester and water are used in cosmetic composition, then cleansing power and skin compatibility are improved, but bad odor is generated over time due to oxidation degradation
Solution Approach 1:
A polyoxyalkylene-modified organopolysiloxane is introduced as an intermediary substance that suppresses the oxidation degradation of polyglycerol fatty acid ester. The organopolysiloxane acts as a protective mediator, preventing direct oxidation of the polyglycerol fatty acid ester while maintaining its cleansing and skin-compatible properties, thereby eliminating bad odor generation without sacrificing its functional benefits
2Object-generated harmful factors
If polyoxyalkylene-modified organopolysiloxane is used to suppress oxidation, then bad odor generation is reduced, but the composition complexity increases
Solution Approach 1:
The polyoxyalkylene-modified organopolysiloxane is selected to perform multiple functions simultaneously: it suppresses oxidation degradation of polyglycerol fatty acid ester, improves glossiness and smoothness of the cosmetic composition, and enhances wettability and foaming properties. This multi-functionality reduces the need for additional separate additives, thereby limiting the increase in composition complexity while achieving comprehensive performance improvement
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 cosmetic composition effectively prevents the formation of bad odors over time, even when stored at high temperatures, while maintaining excellent cleansing properties and skin compatibility.
Implementation Method 1
polyglycerol fatty acid esters... in terms of safety and function thereof... capable of suppressing generation of odor over time
Implementation Method 2
Incorporating ascorbic acid or its derivatives, along with water-soluble compounds such as citric acid and trehalose, into the cosmetic composition to suppress the generation of bad odor
Data Source
AI summary
A cosmetic composition containing a component (A): a polyglycerol fatty acid ester, which is an ester of polyglycerol having an average degree of polymerization of 3 to less than 100 with a fatty acid having 6 to 30 carbon atoms; a component (B): water; and a component (C): at least one compound selected from the group consisting of ascorbic acid, ascorbic acid derivatives, trehalose, sucrose, citric acid and salts of citric acid, and a cosmetic containing the cosmetic composition.