Back to Ingredient Dictionary

SODIUM BROMATE

Description

Sodium bromate is a controversial and potentially hazardous ingredient occasionally found in cosmetic and personal care products. This inorganic compound, with the chemical formula NaBrO3, is a white crystalline solid that readily dissolves in water. Historically, it has been used as an oxidizing agent and preservative in hair care formulations, particularly in permanent wave solutions and hair dyes.

The primary function of sodium bromate in these applications is to facilitate the chemical processes that alter hair structure. However, its use has significantly declined due to safety concerns and regulatory restrictions. The International Agency for Research on Cancer (IARC) has classified sodium bromate as a Group 2B carcinogen, potentially carcinogenic to humans, based on evidence from animal studies.

In cosmetic formulations, sodium bromate can act as a neutralizer, helping to balance pH levels in certain products. Despite its functional properties, the risks associated with its use have led many manufacturers to seek safer alternatives. Regulatory bodies, including the European Union, have imposed strict limitations or outright bans on its use in cosmetics. Consumers and formulators should be aware of the potential health risks and regulatory status of sodium bromate when considering or developing products containing this ingredient.