Amorphous Mesoporous Magnesium Carbonate for Non-Abrasive Sebum Uptake
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Solution Overview
Problem
Existing cosmetic products struggle to effectively absorb excess sebum while maintaining a matte appearance and sensory comfort, as large particles can feel abrasive and current materials do not efficiently combine high sebum uptake with moisture absorption and the ability to carry beneficial substances.
Innovation Solution
A particulate, highly porous amorphous mesoporous magnesium carbonate (MMC) material with a peak particle size below 35 μm, a total pore volume above 0.1 cm³/g, and specific surface area between 100 and 800 m²/g, capable of absorbing oily substances like sebum and moisture, and optionally loaded with agents, is used in topical compositions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Quantity of substance
If large particles are used as sebum absorbers, then sebum uptake capacity is improved, but skin feel becomes abrasive and uncomfortable
Solution Approach 1:
The invention divides the sebum absorber into fine particles with a D50 value of 10 μm or less, segmenting the material to reduce particle size while maintaining high sebum uptake capacity through increased surface area and porous structure, thereby eliminating the abrasive feel on skin
Solution Approach 2:
The invention employs porous silica particles with high specific surface area (150-600 m2/g) and controlled pore structure to achieve efficient sebum absorption. The porous structure provides large internal surface area for oil uptake while the fine external particle size ensures smooth skin feel, resolving the contradiction between absorption capacity and tactile comfort
2Quantity of substance
If conventional sebum absorbers are used, then oily appearance is reduced, but moisture absorption and carrier functionality are insufficient
Solution Approach 1:
The invention creates a multi-functional sebum absorber by combining porous silica with specific surface treatment and particle size control, enabling the material to simultaneously perform sebum absorption, moisture uptake, and carrier functions for active ingredients, thereby achieving universal applicability in cosmetic compositions
Solution Approach 2:
The invention optimizes multiple parameters including particle size (D50 ≤ 10 μm), specific surface area (150-600 m2/g), and pore structure to enhance the material's ability to absorb both oily and aqueous substances while providing carrier functionality, transforming a single-function absorber into a multi-functional cosmetic ingredient
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 MMC material achieves enhanced sebum uptake, maintains matte appearance, and can carry beneficial substances, providing improved cosmetic and skincare products with enhanced oil and moisture control, and sensory comfort.
Implementation Method 1
The material has been shown to be non-cytotoxic... and induces no skin irritation when tested in vivo. U.S. Pat. No. 9,580,330 relates to an X-ray amorphous mesoporous magnesium carbonate (MMC) with large specific surface area and extraordinary moisture sorption capacity. The material is suggested for various uses, including but not limited to delivery and carrier systems for therapeutic and cosmetic or volatile agents. U.S. Pat. No. 9,580,330 further discuss that MMC can be used in a cosmetic composition for the adsorption of fat, oil and impurities from the skin.
Implementation Method 2
U.S. Pat. No. 9,580,330 relates to an X-ray amorphous mesoporous magnesium carbonate (MMC) with large specific surface area and extraordinary moisture sorption capacity.
Data Source
AI summary
The present invention relates to a particulate highly porous amorphous mesoporous magnesium carbonate material suitable for uptake of high amounts of oily substances, sebum or a beneficial agent or combinations of these and to topical and cosmetic compositions comprising such material. The particulate highly porous amorphous mesoporous magnesium carbonate material according to the invention has a total pore volume larger than 0.1 cm 3/g and is constituted of particles having a peak particle size at or below 35 μm.