A sweeping new study has uncovered a troubling mix of hazardous chemicals in popular hair extensions, including products made from human hair. Researchers detected dozens of substances linked to cancer, hormone disruption, reproductive harm, and immune system effects in nearly every sample tested. Some products contained flame retardants, organotins, and chemicals associated with increased breast cancer risk, and several exceeded European safety thresholds.
from Latest Science News -- ScienceDaily https://ift.tt/mEiYnOq
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