Study claims that your everyday shampoo may have chemicals you can’t even fathom

A recent study highlighted in Environmental Science & Technology warns about potential health risks associated with the routine use of hair care products, revealing that the inhalation of dangerous levels of chemicals may occur during typical hair care sessions at home. Purdue University in the US conducted the research, indicating that certain chemicals emitted by these products persist in the air long after use, with individuals potentially inhaling up to 17 mg of harmful chemicals during a standard hair care routine.

The study’s findings have been described as alarming by study co-author Nusrat Jung, who expressed surprise at the significant emissions of volatile chemical mixtures from commonly used hair care products. The identified chemicals of concern include decamethylcyclopentasiloxane, also known as D5 siloxane, which has been associated with adverse effects on the respiratory tract, liver, and nervous system in laboratory animals. Due to safety concerns, the European Union has already restricted its use in wash-off cosmetic products.

The research emphasizes the additional inhalation risks posed by fragrance chemicals present in scented hair care products. While animal studies highlight the persistence of D5 siloxane in the environment and its accumulation in the body, its impact on humans remains poorly understood.

The study raises concerns about a lack of research on “leave-on” hair care products such as gels, oils, creams, waxes, and sprays. High heat, particularly from styling tools like curling irons and hair straighteners, can further release these chemicals into the air.

As a suggested solution, the study proposes avoiding the use of these products altogether. Alternatively, researchers recommend using an exhaust fan during product application to significantly reduce chemical inhalation exposures. The study sheds light on potential health hazards associated with seemingly routine activities, underscoring the importance of considering the impact of personal care products on respiratory health.