Back to Ingredient Dictionary

POTASSIUM BROMIDE

Description

Potassium bromide is an inorganic compound with the chemical formula KBr. In skincare, it serves as a preservative and antimicrobial agent, helping to extend the shelf life of various products. This salt is known for its ability to inhibit the growth of bacteria and fungi, making it particularly useful in formulations that require protection against microbial contamination.

When used in skincare products, potassium bromide is typically present in low concentrations, ranging from 0.1% to 0.5%. It is often combined with other preservatives to create a broad-spectrum antimicrobial system. The ingredient is water-soluble, allowing for easy incorporation into aqueous-based formulations such as lotions, serums, and toners.

Potassium bromide's effectiveness as a preservative is attributed to its ability to disrupt microbial cell membranes, preventing the proliferation of harmful organisms. While generally considered safe for topical use, some individuals may experience skin irritation or sensitization. As with any preservative, it is important to conduct proper safety assessments and adhere to regulatory guidelines when incorporating potassium bromide into skincare formulations.