Scientists Warn: Toxic Forever Chemicals Absorb Through Human Skin

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USA: Scientists have issued a warning about the perils of “forever” chemicals, also known as per- and polyfluoroalkyl substances (PFAS), and their alarming ability to be absorbed through human skin. These chemicals, notorious for their persistence in the environment and resistance to degradation, have been widely studied for their potential health risks. However, new findings indicate that their danger extends beyond ingestion and inhalation.

The Ubiquity and Danger of PFAS

PFAS are a class of over 4,700 man-made chemicals that have been used in a myriad of products, including non-stick cookware, water-resistant clothing, and dental floss. The nickname “forever chemicals” stems from their impressive longevity in both the environment and the human body. Once absorbed or ingested, they can remain for years, potentially leading to adverse health effects.

Studies have linked PFAS exposure to several serious health concerns, such as:

• Hormonal disruption
• Immune system impairment
• Increased cancer risk
• Thyroid disease
• Developmental issues in children

Despite being phased out in many industries, PFAS still persist in the environment, accumulating in the soil, water systems, and even in human tissue.

Absorption Through Skin: A New Threat

The recent study, highlighted in Newsweek, expands the list of exposure pathways for these detrimental chemicals. Scientists have discovered that PFAS can be transdermally absorbed, meaning they can bypass traditional exposure routes and infiltrate the body through the skin.

Study Reveals High Levels of ‘Forever Chemicals’ in US Hot Spots

Read: Study Reveals High Levels of ‘Forever Chemicals’ in US Hot Spots

Dr. Linda Lee, a toxicologist involved in the study, emphasized the significance of this finding: “This is a pathway that opens up new regulations we have to consider for those dealing with contaminated water and for anyone who could be handling PFAS-contaminated items.”

This revelation has significant implications for both public health and regulatory policies. Prior to this study, efforts to mitigate PFAS exposure mainly focused on preventing ingestion and inhalation. The newfound skin absorption pathway necessitates broader protective measures, particularly for industries and professions where contact with PFAS is inevitable.

Implications for Dental Professionals

For dental professionals, the study holds particular relevance. Dental floss, which often contains PFAS to enhance its durability and glide, is used routinely by professionals and patients alike. Understanding that these chemicals can be absorbed through the skin adds urgency to reconsidering the materials used in dental care products.

Elizabeth Salter Green, Director of the Chemicals, Health and Environment Monitoring Trust (CHEM Trust), weighed in on the broader implications: “We can’t escape toxic PFAS—they are now contaminating the bodies of wildlife, as well as humans, and are extremely persistent in the environment. Governments worldwide need to urgently phase out all PFAS where alternatives are available, which is often the case.”

Given these findings, dental practitioners may need to re-evaluate the use of PFAS-containing products in their practices and explore safer alternatives.

Looking Ahead: What Can Be Done?

In response to these alarming findings, regulatory agencies and health organizations are likely to step up their efforts to limit PFAS exposure. Meanwhile, dental professionals can take proactive steps, such as:

• Transitioning to PFAS-free dental floss and other dental products
• Educating patients on the risks associated with PFAS
• Supporting and advocating for industry-wide bans on PFAS in dental care products

Ultimately, the newfound knowledge of PFAS’s ability to be absorbed through the skin underscores the need for continued vigilance and proactive measures to safeguard public health.