PFAS in Smart Watches
Is your apple watch band exposing you to PFAS chemicals and causing more harm than good? And are these chemicals actually entering your body through your skin?
Let’s dive in....
breaking news
In a study published in Environmental Science & Technology Letters researchers from the University of Notre Dame, tested 22 watch bands purchased from various brands at various price points. Many of the bands were manufactured using fluoroelastomers, a synthetic polymer used to make rubber material resistant to sweat, skin oils and lotions.
Results showed that 15 of the 22 bands we tested had a high percentage of total fluorine concentrations, & nine contained PFHxAnine a type of PFAS.
Elevated levels of PFHxA were more prevalent in higher-priced watchbands, or those costing more than $15.
why should you be concerned?
Absorbed Through the Skin: PFAS can be absorbed through sweat and prolonged skin contact, leading to bioaccumulation in the body.
Hormone Disruptors: PFAS are linked to endocrine disruption, which may affect thyroid function, metabolism, and fertility.
Immune System Impact: Studies suggest PFAS exposure may weaken immune function and reduce the effectiveness of vaccines.
Cancer & Chronic Disease Risk: PFAS have been associated with an increased risk of certain cancers, liver damage, and kidney disease.
Sweat Increases Absorption: Since many people wear smartwatches while working out, heat and sweat may increase skin absorption of PFAS 🥵🔥☀️
what are PFAS?
PFAS or per + polyfluoroalkyl substances, are a large group of man-made chemicals characterised by their resistance to water, oil and heat. We see PFAS in non-stick coating of frypans, stain resistant fabrics, wrinkle-proof fabrics, water-proof clothing and even waterproof make up, food packaging and fire fighting foams.
PFAS do not break down in the environment OR in our bodies! hence we call them ‘forever chemicals”
They pose a major health risk and have been linked to cancer (breast + kidney), liver damage, thyroid disease, immune disruption, pregnancy-induced hypertension , endocrine disruption and decreased fetal and infant growth. (PMC7906952)
are these chemicals actually entering our body?
Lets talk about about ‘dermal absorption’.
The outermost layer of the human skin is amazing, it acts like a barrier preventing the passage of MANY thing including chemicals. BUT, PFAS is a compound that has the ability to penetrate the skin. ESPECIALLY the short-chain, more water-soluble PFAS that were found in this study. They have a higher propensity to be absorbed if the skin (absorption rate of 60%) is hot and sweaty (which is will be when we exercise!!!!!!) can trigger allergies & asthma.
Those with asthma, allergies, or sensitive respiratory systems may experience wheezing, headaches, or irritation.
the cumulative dose matters
An estimated 1 in 5 people wear smartwatches or fitness trackers! (according to a 2019 Pew Research study). Another study found consumers wear their wearables an average of 11 hours per day.
The problem is that we are wearing these devices over long periods of time. Dermal absorption may be lower than ingestion of PFAS BUT prolonged exposure still contributes to the bioaccumulation of PFAS. People are NOT taking off their watches!!!!!!!
PFAS-free band alternatives
Companies doing low tox smart watch straps that ship world wide:
Wizeband: metal, leather
Astra Straps: canvas, metal, leather
The Salty Fox: stainless steel, leather, metal, silicone.
Bandify; leather, titanium
My Pretty Strap: stainless steel, leather
Strapify: leather, stainless steel, titanium, silicone and rubber
Cape Diablo: beaded gems
