L-Tryptophan Ester Derivatives for Dual Deodorant and Perfume Action
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Solution Overview
Problem
Current deodorant and antiperspirant products often disrupt skin flora and have drawbacks such as modifying the skin's ecology, and there is a need for novel ingredients that can effectively treat body odor while also providing a perfuming action without these limitations.
Innovation Solution
The use of ester derivatives of L-tryptophan, specifically compounds with formulas (I), (II), and (III), which exhibit both deodorant activity and perfuming properties, can be used alone or in combination with antiperspirant and deodorant agents in cosmetic compositions to treat body odor and provide a pleasant scent.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional deodorant substances (Triclosan, farnesol) are used to destroy bacterial flora and reduce body odor, then deodorant efficacy is improved, but skin flora ecology is significantly modified
Solution Approach 1:
The patent changes the chemical parameters of deodorant agents by using ester derivatives of L-tryptophan with specific molecular structures (formulas I, II, III) instead of conventional Triclosan or farnesol. These new compounds have different biochemical properties that allow them to reduce body odor through alternative mechanisms that do not significantly disrupt skin flora ecology.
Solution Approach 2:
The patent employs composite deodorant compositions containing multiple ester derivative compounds with different R groups (as defined in formulas I, II, III), combining them with antiperspirant agents and other deodorant substances. This composite approach creates a synergistic effect that maintains deodorant efficacy while reducing harmful impacts on skin flora.
2Reliability
If transition metal chelating agents (EDTA, DPTA) are used to reduce bacterial growth by depriving metals, then bacterial growth is reduced, but metal availability for skin functions is affected
Solution Approach 1:
The patent extracts the deodorant function from metal-chelating mechanisms and implements it through ester derivatives of L-tryptophan. These compounds reduce body odor through direct biochemical interactions with odor-causing compounds or bacteria without requiring metal chelation, thereby eliminating the harmful metal deprivation effect while maintaining bacterial growth control.
Solution Approach 2:
The ester derivatives of L-tryptophan act as intermediary substances that mediate between the skin environment and odor-causing bacteria. They provide essential functions (odor reduction, bacterial control) through alternative biochemical pathways that do not involve metal chelation, thus avoiding the harmful effects of metal deprivation.
3Reliability
If perfume is added to mask unpleasant odors, then odor masking is improved, but product complexity increases
Solution Approach 1:
The ester derivatives of L-tryptophan exhibit dual functionality: they provide deodorant activity by reducing body odor through biochemical mechanisms, and simultaneously provide perfuming action with pleasant scents. This multi-functionality eliminates the need to separately add perfume components, thereby maintaining odor masking efficacy while simplifying the overall product formulation.
Solution Approach 2:
The patent merges the deodorant function and perfuming function into a single compound class (ester derivatives of L-tryptophan). By combining these two previously separate functions into one active ingredient system, the formulation complexity is reduced while maintaining both odor reduction and pleasant scent properties.
Data Source
AI summary
This invention relates to the use of at least one following compound having formula (I), as well as the salts thereof, the optical and geometric isomers thereof, and the solvates thereof, as deodorant agent for treating body odor, preferably underarm odor: