Mesoporous magnesium carbonate for use in powder cosmetics

Abstract

ObjectiveIn the present study, we describe the features and functional properties of a new powder cosmetic ingredient, an amorphous mesoporous magnesium carbonate (MMC, also named Upsalite®) with regard to physical characteristics as well as functional attributes.MethodsPhysical and functional characterization of MMC, as compared to other common powder cosmetic ingredients (silica, mica, kaolin, talc and starch), was assessed using nitrogen gas adsorption, powder X‐ray diffraction, particle size distribution by laser diffraction, scanning electron microscopy (SEM), and oil and moisture uptake tests. The powder ingredients were also applied on human skin and analysed for short‐ and long‐term mattifying effect, and a new method was developed to measure flashback effect. MMC was tested for skin irritation using an in vitro cell model as well as in vivo, through the Human Repeated Insult Patch Test on 50 human volunteers.ResultsMesoporous magnesium carbonate has a high surface area and pore volume. It has an excellent absorption capacity and can take up both oil and water simultaneously. It provides instant and long‐lasting mattifying effect when applied on human skin without drying or irritating skin and exhibits no measured flashback effect.ConclusionMesoporous magnesium carbonate has good sensory and visual characteristics as well as excellent absorbing and mattifying properties, suggesting that it has great potential to replace other powder ingredients currently used as fillers and absorbers in powder cosmetics.

Valorization of Sugarcane By-Products through Synthesis of Biogenic Amorphous Silica Microspheres for Sustainable Cosmetics

“…Undesirable skin shine is composed of sebum, sweat, dead skin cells, and environmental impurities. Thus, an ingredient that presents both humidity and the ability to absorb sweat and oil and remain dry after being absorbed, will have a better mattifying effect than ingredients that mainly absorb oil or that become wet and cakey after absorbing moisture [ 30 ]. Spherical silica particles are frequently used in cosmetics due to their great capacity to absorb sweat and oil, leading to a decrease in light reflection and improvement of soft focus and mattifying effect.…”

“…These results confirm the high specific surface area of silica gel (639 m 2 /kg, data not shown), which is a well-known moisture absorber widely used in different products and applications as a desiccant. Amorphous silica comprises an inorganic network of SiO 2 units bonded through hydrophobic siloxane groups and holding hydrophilic surface silanol (Si-OH) groups [ 30 ].…”

Management of the poultry red mite Dermanyssus gallinae with physical control methods by inorganic material and future perspectives

“…Mesoporous magnesium carbonate can take up oil, even if it has already taken up as much water as silica. For example, the water adsorption capacity of silica preloaded with 50 wt% oil was reduced by more than 50%, but MMC maintained approximately 80% of its moisture absorption capacity when loaded with 50 wt% oil ( Bamford, 2021 ). When water molecules are adsorbed, they readily interact with both the MMC surface and its bulk structure owing to their enhanced mobility, thereby creating a dual absorption effect.…”

Formulation of Anti Acne Loose Powder of Bawang Dayak (Eleutherine bulbosa (Mill.) Urb.) Ethanol Extract

“…Loose powder is the original type of face powder that can easily absorb on the skin and free the face from oil 18 . Therefore, this study aims to make innovative loose powder preparations from E. bulbosa ethanol extract and to determine its physical evaluation and antibacterial activity.…”