Article last updated: October 15, 2024
Phthalic Anhydride/Benzoic Acid/Glycerin Copolymer, often referred to by its more technical name as a copolymer of 1,3-isobenzofurandione, benzoic acid, and glycerin monomers, is a synthetic ingredient commonly used in the cosmetic industry. This ingredient is primarily known for its film-forming properties, which make it a valuable addition to a variety of beauty and personal care products.
The copolymer is derived from three main components: phthalic anhydride, benzoic acid, and glycerin. Phthalic anhydride is an organic compound derived from phthalic acid, commonly used in the production of plastics and resins. Benzoic acid is a simple aromatic carboxylic acid, often found in nature in various plants and used as a food preservative. Glycerin, also known as glycerol, is a simple polyol compound that is widely used in pharmaceutical formulations and personal care products due to its moisturizing properties.
The history of Phthalic Anhydride/Benzoic Acid/Glycerin Copolymer in cosmetics dates back to the mid-20th century when the demand for more advanced and effective film-forming agents began to rise. Researchers and chemists sought to create a compound that could provide a durable, flexible film on the skin or hair, leading to the development of this copolymer. Its ability to form a continuous, cohesive layer made it an ideal candidate for various applications, including nail polishes, hair sprays, and skincare products.
The manufacturing process of this copolymer involves a chemical reaction known as polymerization. During this process, the monomers—phthalic anhydride, benzoic acid, and glycerin—are combined under controlled conditions to form a larger, more complex molecule. This reaction typically takes place in a reactor vessel where the monomers are heated and stirred, allowing them to chemically bond and create the copolymer. The resulting product is then purified and processed into a form that can be easily incorporated into cosmetic formulations.
In this section, we will delve into the officially recognized cosmetic benefits and uses of Phthalic Anhydride/Benzoic Acid/Glycerin Copolymer:
One of the primary benefits of Phthalic Anhydride/Benzoic Acid/Glycerin Copolymer is its ability to form a film on the skin or hair. This means that when applied, it creates a thin, continuous layer that can help protect the skin or hair from environmental factors. For instance, in hair care products, this film can help to lock in moisture, reduce frizz, and provide a smooth, glossy finish. In skincare products, it can help to create a barrier that protects the skin from pollutants and other external aggressors.
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).
Phthalic Anhydride/Benzoic Acid/Glycerin Copolymer 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 Phthalic Anhydride/Benzoic Acid/Glycerin Copolymer during pregnancy are lacking. Therefore, it is advisable for pregnant or breastfeeding women to consult a healthcare professional for further advice before using products containing this ingredient.
Adverse reactions to Phthalic Anhydride/Benzoic Acid/Glycerin Copolymer are uncommon, but it is always wise to perform a patch test before widespread usage to ensure there are no adverse reactions.
In terms of comedogenicity, Phthalic Anhydride/Benzoic Acid/Glycerin Copolymer is rated as a 1 on a scale of 0 to 5, where 0 is totally non-comedogenic and 5 is highly comedogenic. This low rating means it is unlikely to clog pores and is generally suitable for individuals prone to acne, blemishes, or breakouts.
