Article last updated: October 15, 2024
Quaternium-91, also known as 1-(Docosanamidoethyl)-2-heneicosyl-1-methyl-4,5-dihydroimidazolium methyl sulfate, is a synthetic compound primarily used in hair conditioning products. This ingredient is part of the quaternary ammonium compounds family, which are known for their conditioning properties. In the world of cosmetics, Quaternium-91 is valued for its ability to improve the texture and manageability of hair, making it a popular choice in various hair care formulations.
The history of Quaternium-91 in cosmetic products dates back to the mid-20th century when scientists began exploring the potential of quaternary ammonium compounds for personal care applications. These compounds were found to possess excellent conditioning properties, which led to their widespread adoption in shampoos, conditioners, and other hair care products. Over the years, Quaternium-91 has become a staple ingredient in the industry, thanks to its effectiveness and safety profile.
Quaternium-91 is typically synthesized through a chemical process that involves the reaction of fatty acids with amines, followed by quaternization with methyl sulfate. This process results in a compound that is highly effective at conditioning hair, reducing static, and improving combability. The specific fatty acids and amines used in the synthesis can vary, but the end product is always a quaternary ammonium compound with strong conditioning properties.
In this section, we will delve into the officially recognized cosmetic benefits and uses of Quaternium-91:
Quaternium-91 is primarily known for its hair conditioning properties. This means it helps to improve the texture and appearance of hair, making it smoother, softer, and more manageable. When used in hair care products like shampoos, conditioners, and leave-in treatments, Quaternium-91 works by coating the hair strands, reducing static, and preventing frizz. This can be particularly beneficial for those with dry, damaged, or chemically treated hair, as it helps to restore a healthy look and feel.
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).
Quaternium-91 is generally considered safe for use in cosmetic products, including hair conditioners. 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 Quaternium-91 during pregnancy and breastfeeding are lacking. Therefore, it is advisable for these individuals to consult a healthcare professional for further advice.
Adverse reactions to Quaternium-91 are relatively uncommon, but they can occur. It is recommended to perform a patch test before widespread usage to ensure that you do not have an adverse reaction to the ingredient.
Quaternium-91 has a comedogenic rating of 1, meaning it is very unlikely to clog pores. This makes it a suitable option for individuals who are prone to acne, blemishes, or breakouts.
