Birmingham, United Kingdom – Scientists from the University of Birmingham have made a groundbreaking discovery regarding the absorption of ‘forever chemicals’ by the human skin. These toxic substances, known as per- and polyfluorinated alkyl substances (PFAS), have long been cause for concern due to their health implications. When first introduced over 50 years ago, companies like DuPont were aware of the potential dangers posed by PFAS, including their toxicity when inhaled or ingested.
Recent research has shed light on the ability of PFAS to pass through the skin, challenging previous beliefs that their ionized nature prevented skin absorption. Scientists have found that these chemicals, commonly found in everyday products like cosmetics, can indeed permeate the skin barrier, potentially entering the bloodstream and causing harm.
Amid growing concerns about the prevalence of PFAS in consumer products, researchers conducted experiments using a human skin model to assess the absorption rates of different PFAS variants. The results were concerning, with 15 out of 17 tested chemicals being absorbed by the skin model within a relatively short time frame.
Of particular worry is the presence of perfluoro octanoic acid (PFOA), a highly toxic PFAS that has been phased out of production due to its harmful effects. Despite efforts to limit its use, PFOA continues to contaminate the environment and even finds its way into tap water supplies.
One study revealed that a significant portion of PFOA applied to the skin model was absorbed into the bloodstream, raising concerns about the potential health risks associated with skin exposure to these harmful chemicals. The findings highlight the need for more thorough research and regulation to protect public health.
While some progress has been made in regulating PFAS, challenges remain in understanding the full extent of their impact on human health. Continued research using advanced techniques like 3D skin models offers valuable insights without subjecting individuals to direct exposure to these toxic substances.
As scientists delve deeper into the complexities of forever chemicals and their interactions with the human body, the need for public awareness and informed decision-making becomes increasingly evident. The study published in Environment International underscores the urgency of addressing the risks associated with PFAS exposure through skin contact.