A recent study has identified dozens of potentially harmful chemicals in popular hair extension products, sparking significant safety and regulatory concerns. Researchers from the Silent Spring Institute and Southwest Research Institute analyzed 43 hair extension brands. Problematic chemicals were detected in all but two products.
The findings are particularly concerning for Black women, who frequently use hair extensions for cultural and convenience reasons. Lead author Elissia Franklin of the Silent Spring Institute stated, "This is an industry that has long overlooked the health of Black women, who should not have to choose between cultural expression, convenience, and their health."
Hair extensions are often treated with chemicals to achieve properties like flame resistance or antimicrobial effects, yet regulation of these materials is minimal. The study identified 48 chemicals on major hazard lists, including 12 on California's Proposition 65, known to cause cancer or reproductive harm.
Furthermore, 17 chemicals linked to breast cancer were found in 36 samples, with some capable of altering hormones that affect cancer risk. Four potentially harmful flame retardants and toxic organotins were also detected. Franklin noted the surprise discovery of organotins, commonly used as heat stabilizers and linked to skin irritation.
Given the extended wear and proximity to skin and airways, researchers are urging for improved regulation, manufacturer accountability, and clearer consumer warnings. The study highlights that companies rarely disclose chemical compositions, leaving consumers unaware of potential health risks.