Quaternium-51

Quaternium-51 (CAS 1463-95-2) is a quaternary ammonium compound used in personal care and cosmetic formulations as a preservative and stabilizing agent. It provides antimicrobial protection and oxidative stability to finished products.

This chemical helps formulators meet preservation efficacy requirements in various applications. In rinse-off and leave-on cosmetic systems, it functions as a biocidal component targeting microbial contamination that compromises product shelf life.

It is evaluated for inclusion in preservation blends where broad-spectrum activity against bacteria and fungi is required. This is particularly useful when formulators do not want to rely solely on traditional preservative systems.

Formulators working on hair care, skin care, and personal hygiene products consider it when building preservation strategies. These strategies must satisfy rigorous stability testing protocols to ensure consumer safety and product longevity.

Its antioxidant role also supports formulation integrity in emulsions and aqueous-based products prone to oxidative degradation. This dual functionality makes it a versatile ingredient for complex cosmetic manufacturing processes.

The material is typically supplied as a solid or solution-grade material for cosmetic manufacturing use. Technical-grade material is the standard commercial form available through specialty chemical distributors serving the sector.

Buyers should confirm purity specifications and documentation requirements directly with suppliers. Grade availability may vary by source, so it is essential to verify that the material meets specific internal quality control standards.