
SODIUM P-CHLORO-M-CRESOL
Description
Sodium p-chloro-m-cresol is a synthetic preservative commonly used in cosmetic and personal care products. This white crystalline compound is highly effective against a broad spectrum of microorganisms, including bacteria, yeasts, and molds. Its chemical structure consists of a phenol ring with a chlorine atom and a methyl group, providing antimicrobial properties.
In skincare formulations, sodium p-chloro-m-cresol typically appears in concentrations ranging from 0.05% to 0.3%. It functions by disrupting microbial cell membranes, inhibiting enzyme systems, and preventing the growth of harmful microorganisms. This preservative is particularly valuable in water-based products, where microbial contamination is a significant concern.
While effective, sodium p-chloro-m-cresol has faced scrutiny due to potential skin sensitization in some individuals. Regulatory bodies, including the European Commission, have established maximum concentration limits for its use in cosmetics. Formulators often combine it with other preservatives to enhance efficacy and reduce the risk of adverse reactions.
When selecting products containing this ingredient, individuals with sensitive skin or a history of allergic reactions should perform patch tests. As with any preservative, its use should be balanced against the need for product stability and safety.