Isosorbide Moisturizing Agent for Skin Hydration
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Solution Overview
Problem
Glycerol, commonly used in cosmetics for skin moisturizing, has a greasy and tacky feel when used in high amounts, making it unpleasant for users.
Innovation Solution
A composition based on 1,4:3,6-dianhydrohexitols, particularly isosorbide, is used as a moisturizing agent, providing effective skin hydration without the greasy or tacky sensation, even at high concentrations, and offering a dry and powdery feel.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If glycerol is used in large amounts for skin moisturizing, then moisturizing effectiveness is improved, but a greasy and tacky feel is produced on the skin
Solution Approach 1:
The patent applies parameter changes by substituting glycerol with isosorbide, a different chemical compound with distinct physical properties. Isosorbide maintains the moisturizing function while changing the sensory characteristics on skin, eliminating the greasy and tacky feel associated with high concentrations of glycerol.
Solution Approach 2:
The patent employs an alternative moisturizing agent (isosorbide) that can be used at high concentrations without the detrimental sensory effects. This substitution allows for effective moisturizing while avoiding the need to limit concentration due to sensory drawbacks, effectively replacing the problematic substance with a superior alternative in this context.
2Reliability
If glycerol concentration is increased to enhance moisturizing power, then hydration effectiveness is improved, but spreadability and penetration are reduced
Solution Approach 1:
The patent changes the chemical parameter from glycerol to isosorbide, which possesses different rheological and penetration properties. This substitution maintains or enhances hydration effectiveness while improving spreadability and skin penetration, as isosorbide has lower viscosity and better dermatological penetration characteristics.
3Reliability
If glycerol is used as a moisturizing agent, then skin hydration is achieved, but a unpleasant sensory feel is produced
Solution Approach 1:
The patent replaces glycerol with isosorbide as the moisturizing agent. This substitution eliminates the unpleasant sensory feel while preserving the skin hydration function, making isosorbide a superior choice for topical moisturizing applications where sensory acceptability is crucial.
Solution Approach 2:
Isosorbide acts as an intermediary substance that delivers the moisturizing effect without the adverse sensory properties of glycerol. It mediates between the need for effective hydration and the requirement for pleasant skin feel, providing a bridge solution that satisfies both demands.
Data Source
AI summary
The invention relates to the non-therapeutic use of a composition comprising at least one 1,4:3,6 dianhydrohexitol for moisturising the skin, as well as to a preparation for topical use comprising at least one 1,4:3,6 dianhydrohexitol as a moisturising agent.