Cosmetic Storage Stability via Cyclic Carboxamide Odor Suppression
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Solution Overview
Problem
Thuja orientalis seed extract can generate an unpleasant odor in high-temperature environments, which affects the stability and quality of cosmetics containing it.
Innovation Solution
Combining Thuja orientalis seed extract with a specific cyclic carboxamide derivative, such as 1-(2-hydroxyethyl)-2-imidazolidinone, suppresses the generation of this odor, and the cosmetic also includes water and a water-soluble thickener to enhance storage stability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If Thuja orientalis seed extract is used in cosmetic, then whitening and anti-wrinkle effects are achieved, but unpleasant odor is generated in high-temperature environment
Solution Approach 1:
A cyclic carboxamide derivative is introduced as an intermediary substance that mediates between the Thuja orientalis seed extract and the high-temperature environment. The derivative acts as a protective agent that prevents the extract from generating unpleasant odors during storage, thereby resolving the contradiction between maintaining the extract's effectiveness and preventing odor generation.
Solution Approach 2:
The invention changes the chemical parameters of the cosmetic formulation by adding a cyclic carboxamide derivative with specific molecular structure characteristics (Formula 1). This parameter change modifies the interaction between components at high temperatures, preventing the degradation reactions that produce unpleasant odors while preserving the functional properties of the Thuja orientalis seed extract.
2Reliability
If Thuja orientalis seed extract is used in cosmetic, then melanin generation inhibitory effect is achieved, but storage stability deteriorates in high-temperature environment
Solution Approach 1:
The cyclic carboxamide derivative provides beforehand cushioning by preemptively protecting the Thuja orientalis seed extract from high-temperature degradation. The derivative is incorporated into the formulation in advance to create a protective environment that cushions against thermal stress during storage, preventing the harmful effects of high temperature before they can occur.
Data Source
AI summary
[Problem] To provide a cosmetic excellent in storage stability, according to the present Invention.[Solution] A cosmetic including (A) a Thuja orientalis seed extract, (B) a cyclic carboxamide derivative having a specific structure or its salt, and (C) water.