- 14,189 viewsDuration: 1:33“Anyone who wears hair extensions should be concerned.” Hair extensions worn by millions of women globally may contain chemicals linked to breast cancer, hormone disruption and reproductive harm, according to the largest study of its kind. Scientists found nearly 50 hazardous chemicals in nearly every sample tested in a range of synthetic and human hair products including wigs, braiding hair, weaves and wefted hair like clip-ins. The researchers from the Silent Spring institute in the US say a lack of regulation in the hair extension industry leaves the burden of ensuring safety on the consumer. "If they were never on the market, we would never have to choose," says Dr Elissia Franklin, the study's lead author. Hair dyes and straighteners have also been linked to increased risk of breast cancer in previous studies. However, unlike hair extensions, these products are regulated as cosmetic products and undergo safety tests. The findings, published in the American Chemical Society journal, have prompted calls for stronger regulation of the multibillion-dollar industry and greater transparency for consumers. "Regulation only works if products are correctly classified and enforcement is active at the point of import and sale," says Caroline Larissey, chief executive of the UK's National Hair & Beauty Federation. #HairExtensions #braids Subscribe: http://bit.ly/subscribetoafrica Website: https://www.bbc.com/africa Facebook: https://www.facebook.com/bbcnewsafrica/ Twitter: https://www.twitter.com/bbcafrica/ Instagram: https://www.instagram.com/bbcafrica/