Mannosylerythritol Lipid Stabilizer for Cosmetic Crystallization
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Solution Overview
Problem
Kojyl methylenedioxycinnamate, a compound with antiaging, antioxidant, and whitening effects, is not easily dissolved in cosmetic compositions due to its strong crystallinity, leading to premature crystallization and precipitation, which degrades its stability and skin absorption efficiency.
Innovation Solution
Incorporating mannosylerythritol lipid (MEL) as a stabilizer in the cosmetic composition to inhibit crystallization of kojyl methylenedioxycinnamate, maintaining its stability at various temperatures and preventing precipitation, thereby enhancing the compound's effectiveness and skin benefits.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If kojyl methylenedoxycinnamate is used as an active ingredient in cosmetic composition, then antiaging, antioxidant, and whitening effects are achieved, but the compound precipitates and crystallizes prematurely due to strong crystallinity, degrading stability and skin absorption
Solution Approach 1:
Mannosylerythritol lipid (MEL) acts as an intermediary substance that mediates between the crystalline active ingredient (kojyl methylenedoxycinnamate) and the cosmetic composition matrix. MEL prevents direct crystallization of the active ingredient by forming a stable complex or dispersion, thereby maintaining dosage form stability while preserving the compound's biological activity and skin absorption properties.
Solution Approach 2:
The invention changes the physical-chemical parameters of the system by introducing MEL, which alters the solubility, crystallization temperature, and stability characteristics of kojyl methylenedoxycinnamate. This parameter change allows the compound to remain in a stable, non-crystalline state within the cosmetic composition at various temperatures, preventing premature precipitation.
2Ease of operation
If kojyl methylenedoxycinnamate is dissolved in composition, then it becomes available for skin absorption, but it recrystallizes in very short time, degrading texture and absorption efficiency
Solution Approach 1:
MEL serves as a stabilizing intermediary that maintains the dissolved state of kojyl methylenedoxycinnamate in the cosmetic composition. By forming a stable dispersion or complex, MEL prevents the compound from recrystallizing, thereby extending the duration of its availability for skin absorption and maintaining product texture over time.
Solution Approach 2:
The invention performs preliminary stabilization by incorporating MEL during the formulation process, which pre-prevents crystallization before the product is applied to the skin. This preliminary action ensures that the active ingredient remains in a stable, absorbable state throughout the product's shelf life and during application.
3Reliability
If stabilizers are added to prevent crystallization, then dosage form stability is improved, but the complexity of formulation increases
Solution Approach 1:
The invention simplifies the formulation approach by selecting MEL, which achieves stabilization through specific parameter changes (concentration, molecular structure characteristics) rather than requiring complex multi-component systems. The optimal concentration range of MEL (0.01-10% by weight) provides effective stabilization with minimal formulation complexity.
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 use of MEL in the cosmetic composition ensures long-term stability of kojyl methylenedioxycinnamate, maximizing its antiaging and whitening effects by preventing crystallization, thus improving skin elasticity and preventing wrinkle formation while maintaining product texture.
Implementation Method 1
a mannosylerythritol lipid (MEL) represented by the following Formula 2 as a stabilizer: wherein R1 to R4 are as described in this specification. In this case, the kojyl methylenedioxycinnamate may be included at a content of 0.05 to 0.25% by weight, based the total weight of the cosmetic composition. Also, the mannosylerythritol lipid may be included at a content of 0.25 to 5.0% by weight, based the total weight of the cosmetic composition.
Data Source
AI summary
The present invention relates to a cosmetic composition using a mannosylerythritol lipid, which is a kind of glycolipid, as a stabilizer in order to prevent kojyl methylenedioxycinnamate, which is an active ingredient having various skin effects such as antiaging, whitening and antioxidation, from causing crystallization inside a dosage form. Even if the cosmetic composition according to the present invention contains a high concentration of an active ingredient, crystal precipitation does not occur in various dosage forms, and thus the functionality of the active ingredient is maximized, skin delivery is increased and the texture during use is improved.