Teflon® in your makeup? Yuck. This non-stick ingredient and other
fluorinated compounds have been associated with delayed menstruation, later
breast development and cancer.
WHAT ARE FLUORINATED COMPOUNDS? Fluorinated compounds are ngredients built around the element fluorine, a
halogen element, with properties similar to chlorine and bromine, which are
common in flame retardant chemicals.
WHAT TO LOOK FOR ON THE LABEL: Polytetrafluoroethylene (PTFE), Polyperfluoromethylisopropyl Ether,
DEA-C8-18 Perfluoroalkylethyl Phosphate, Teflon.
Fluorinated compounds are extremely stable and as a result do not break
down in the environment. They have been found in remote regions of the world,
including the polar ice caps.
Polytetrafluoroethylene (PTFE) appears to be the most common fluorinated
compound in cosmetics. It is used most widely in anti-aging products and
cosmetics, likely because it provides a smooth, sleek finish. PTFE is
trademarked as Teflon®, for use in non-stick cookware.
PTFE is
generated using another fluorinated compound, perfluorooctonoic acid (PFOA),
which may leave residual amounts of PFOA in the final ingredient. The US
EPA initiated the PFOA stewardship program to reduce PFOA residues in consumer
products.4 While research suggests that most PFOA exposure results from its use
in food contact items, indirect exposure from consumer products is also likely. PFOA
in food contact materials may be as high as 300 ppb (in popcorn bags); but to
our knowledge, no studies have yet assessed PFOA contamination in cosmetics
containing PTFE.
HEALTH CONCERNS: Potential
contamination with perfluorooctonoic acid (PFOA) which is associated with
cancer; mammary cancer; reproductive toxicity, endocrine disruption and
environmental bioaccumulation and persistence.
The International Agency for Research on Cancer reviewed the research on
PTFE, and determined the current data was inconclusive with regard to PTFE’s
potential to cause cancer. However, a wide-ranging literature has linked PFOA,
which can be a contaminant of PTFE-containing consumer products, to health
effects. In addition to the specific health effects from PFOA’s, researchers
have found evidence that exposures to fluorinated compounds may increase the
carcinogenicity of other chemicals when exposures occur together.
PFOA has been found in body fluid samples from 99.7 percent of the U.S.
adults. Other studies have found PFOA in blood serum samples taken from
adults from nine countries on four continents, and an additional study
found PFOA in every one of the umbilical cord blood samples from newborns in
Baltimore. Higher levels of the chemical in cord blood were associated
with both lower birth weight and smaller size, indicating an effect of PFOA on
prenatal development.
Cancer: The International Agency for Research on
Cancer has designated PFOA as a possible carcinogen. Changes have been observed
in mammary gland development in animals, which may have implications for breast
cancer risk in exposed girls. The mammary gland may be especially
sensitive to PFOA exposure, and both prenatal and early postnatal exposure may
lead to concerning changes in mammary gland development.
One study found elevated levels of fluorinated compounds in Greenland
Inuit women with breast cancer compared to Inuit women without breast cancer. A
study of highly contaminated regions of Ohio and West Virginia found elevated
levels of testicular, prostate, kidney and ovarian cancers and non-Hodgkin’s
lymphoma among individuals with higher exposures to PFOA.
Endocrine Disruption: PFOA exerts effects
on the endocrine system, disruptingestrogen receptors, thyroid receptors,
steroid hormones, and male
testosterone levels. Another study found further evidence that PFOA can
act as an estrogen on its own, but this study also found that in the presence
of the natural estrogen, estradiol, PFOA acted as an anti-estrogen.
Higher concentrations of PFOA and a related compound perfluorooctane
sulfanate (PFOS) were associated with current thyroid disease among US adults.
Delayed Puberty: In southeastern Ohio, adolescent girls with
higher levels of PFOA in their blood, were more likely to have delayed onset of
menstruation. Another study of Ohio girls demonstrated that exposures to
higher levels of PFOA were associated with later breast development. While
earlier breast development is a known risk factor for breast cancer, these data
support a potential endocrine-disrupting effect of PFOA, which may lead to
other health effects later in life.
Reproductive
Toxicity: PFOA is a known
developmental toxicant. PFOA exposure in utero leads to reduced weight gain
during lactation, delayed sexual maturation and death in rodents. In humans,
PFOA exposure was associated with pregnancy-induced hypertension (high-blood
pressure), and PFOS was associated with reduced birth-weight in full-term
infants. Higher levels of the chemical in cord blood were associated with both
lower birth weight and smaller size, indicating an effect of PFOA on prenatal
development. In a novel study of PFOA exposures among pregnant women in an
electronic waste recycling area in China, mothers living in the area had higher
PFOA levels than mothers in other areas; and exposures were associated with
delayed physical development and adverse birth outcomes.
Other effects Both PFOA and PFOS have been associated with changes to the immune
response, including inflammation. Research does not suggest an association
between early life PFOA exposure and obesity in adulthoodor Type II diabetes.
VULNERABLE POPULATIONS: Pregnant
women, children
HOW TO AVOID: To avoid PFOA exposure from personal
care products, skip products with polyperfluoromethylisopropyl ether, polytetrafluoroethylene,
DEA-C8-18 perfluoroalkylethyl phosphate or Teflon® on the label.
REGULATIONS: PFOA: US EPA set a
provisional health advisory for levels above .4 ppb in drinking water.
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