Main Uses

The core advantage of Polyquaternium-7 lies in its combination of antibacterial properties and biocompatibility, making it particularly suitable for scenarios involving contact with human mucous membranes or sensitive areas. Specific applications are as follows:

Pharmaceutical and Oral Care Fields

Oral Disinfection: As a primary antibacterial ingredient in mouthwashes and oral sprays, it can kill pathogenic bacteria in the oral cavity (such as bacteria associated with gingivitis, Candida albicans, etc.), reduce dental plaque and gingivitis. Additionally, the polymer film can adhere to the surface of the oral mucosa, prolonging the antibacterial duration, and its irritancy is far lower than traditional disinfectants (such as chlorhexidine);

Skin and Mucosal Care: Used in wound dressings, vaginal douches, etc., it can both sterilize to prevent infection and form a protective film to promote mucosal repair, making it suitable for sensitive skin or post-operative care;

Ophthalmic Care: Used as an antibacterial ingredient in contact lens care solutions to inhibit microbial growth on lenses while being gentle and non-irritating to the ocular surface mucosa.

Daily and Personal Care Fields

Added to wet wipes, feminine care liquids, and baby care products as a mild antibacterial ingredient to avoid the irritation caused by traditional disinfectants on delicate skin;

Added to toothpastes and oral gels to enhance antibacterial and tooth-protecting effects and reduce oral malodor.

Other Industrial Applications

As a water treatment agent, used for sterilization and algae control in high-end circulating water systems. Its polymer structure allows it to form a continuous antibacterial layer on pipe surfaces, reducing microbial adhesion;

Used in the textile industry for antimicrobial fabric finishing, imparting long-lasting antibacterial properties to fabrics, with better wash resistance than small-molecule quaternary ammonium salts.