Article last updated: October 15, 2024
Stearalkonium Bentonite, also known by its chemical name Benzenemethanaminium, N,N-dimethyl-N-octadecyl-, reaction products with bentonite, is a unique ingredient commonly found in cosmetic products. This compound is a type of modified clay derived from bentonite, a naturally occurring mineral formed from volcanic ash. The bentonite is treated with stearalkonium chloride, a quaternary ammonium compound, to produce Stearalkonium Bentonite.
The history of Stearalkonium Bentonite in cosmetics dates back to the mid-20th century when the cosmetic industry began exploring various clays and minerals for their beneficial properties. Bentonite clay, known for its excellent absorbent and swelling properties, was modified to enhance its usability in cosmetic formulations. By reacting bentonite with stearalkonium chloride, scientists were able to create a compound that not only retained the beneficial properties of bentonite but also gained new functionalities, making it more suitable for use in a variety of cosmetic products.
The production process of Stearalkonium Bentonite involves a chemical reaction between bentonite clay and stearalkonium chloride. This reaction modifies the surface properties of the bentonite, making it more compatible with other ingredients commonly used in cosmetics. The result is a fine, powdery substance that can be easily incorporated into formulations to improve texture, stability, and performance.
In this section, we will delve into the officially recognized cosmetic benefits and uses of Stearalkonium Bentonite:
Stearalkonium Bentonite is known for its gel-forming capabilities. This means it can transform liquid formulations into a gel-like consistency. In practical terms, this is particularly beneficial for products like creams, lotions, and gels, where a thicker, more stable texture is desired. This gel-forming property helps in evenly distributing the product on the skin, ensuring that the active ingredients are delivered effectively and uniformly.
Another key function of Stearalkonium Bentonite is its ability to control viscosity. Viscosity refers to the thickness or thinness of a liquid. By adjusting the viscosity, this ingredient helps in achieving the desired consistency of cosmetic products. For instance, it can make a runny lotion thicker or a dense cream more spreadable. This control over viscosity ensures that the product feels just right when applied, enhancing the overall user experience.
Note: the listed benefits above are exclusively based on the officially recognized and defined functions of the ingredient, as documented by the International Nomenclature of Cosmetic Ingredients (INCI).
Stearalkonium Bentonite is generally considered safe for use in cosmetic products. However, as with any ingredient, there are potential side effects and considerations to keep in mind.
Regarding individuals who are pregnant or breastfeeding, data and research on the topical usage of Stearalkonium Bentonite during pregnancy are lacking. Therefore, it is advisable for these individuals to consult a healthcare professional for further advice.
Side effects and adverse reactions from Stearalkonium Bentonite are relatively uncommon. However, it is recommended to perform a patch test before widespread usage to ensure there are no adverse reactions.
In terms of comedogenicity, Stearalkonium Bentonite has a rating of 2 on a scale of 0 (totally non-comedogenic) to 5 (highly comedogenic). This means it has a low to moderate likelihood of clogging pores, which could be a concern for individuals prone to acne, blemishes, or breakouts.
