Out of 169 identified chemicals, many were associated with risks of cancer, developmental issues, reproductive health
According to a study published in Environment & Health on February 11, this was “the most comprehensive testing of hair extensions publicly reported.” The concern arose 11 from testing 44 hair samples and detecting dangerous chemicals, including flame retardants, phthalates, and pesticides. Additionally, out of the 169 identified chemicals, many were associated with risks of cancer, developmental issues, and reproductive health.
Dr Elissia T. Franklin, lead researcher of the paper, shared her concerns that each identified chemical poses its own risks and that extended exposure to these substances accumulates over time.
The study’s importance is heightened by the rise of the wig and hair extension industry, which is projected to surpass $14 billion by 2028, while regulation and chemical characterisation remain subpar.
“Hair extension product packaging and websites rarely disclose chemical composition. Extensions may be made of human hair, other natural fibres, or synthetic fibres and may be treated with dyes, flame retardants, waterproofing agents, pesticides/antimicrobials, and other conditioning agents,” Franklin et al. state.
Black women are disproportionately affected because over 70% of them wear extensions at least once a year, compared to under 10% of white women. “Little is known about how chemical exposure differs among different races/ethnicities,” the study adds.
The research indicates the potential harms of hair extensions. Prolonged exposure to the chemicals through skin contact, inhalation, and even ingestion can accumulate over time.
Given the lack of research on these substances and their long-term exposure, the study encourages further research, greater corporate transparency, and stronger regulation within the growing industry.
