PFAS Are Everywhere and a Threat to Our Wellbeing. Here’s What to Know and Do

You may have heard of PFAS—a group of human-made chemicals found in countless products, from cookware to furniture. You also may have heard that PFAS can be bad for our health. Indeed, very bad for our health. But whether you've listened to this, the reasons why these substances get a well-deserved negative reputation are murky. That's because there are so many of them, and their uses are as vast as their reach. 

 
 

What Are PFAS?

Perfluoroalkyl and polyfluoroalkyl substances, widely known as PFAS, are human-made fluorinated compounds. Manufacturers began incorporating PFAS in the 1940s after discovering the chemistry that created them in the 1930s. By the 1950s, their use had become ubiquitous.

Two main processes create PFAS: electrochemical fluorination, called ECF, and fluorotelomerization, which are chemical processes that produce side-chain fluorinated polymers, perfluoroalkyl acids, and polyfluoroalkyl surfactants. Scientists state that "more than 600 intermediate processes have also been used" further to make certain PFAS and the associated final products, as indicated by the Interstate Technology and Regulatory Council.

The group of PFAS is enormous and includes thousands—more than 4,700—of chemicals, including Perfluorooctanoic acid (PFOA) and perfluorooctane sulfonate (PFOS), commonly found in drinking water

What Is the Purpose of PFAS?

When manufacturers discovered PFAS midcentury, they quickly began incorporating them into products. Why? PFAS can bolster materials, elongating their shelf-life, durability, and resistance to grease, oils, fire, and other substances. They have been used to make nonstick cookware, water- and stain-repellent materials, clothing, cosmetics, firefighting foams, furniture, and more.

One of the most significant and well-known uses of PFAS has been in nonstick cookware. American chemist Roy J. Plunkett discovered the chemistry of PFAS by accident when he worked at DuPont Company's Jackson Laboratory in the late 1930s. Plunket was working on aiming to create new refrigerants for Duponte. According to the American Physical Society, in April of 1938, Plunkett and his research assistant, Jack Rebok, discovered a new substance in the tetrafluoroethylene cylinders they'd been using. The gas substance had polymerized—something they had not predicted—into something called polytetrafluoroethylene. "The PTFE proved to have some remarkable properties," APS states. "It was corrosion- and high-heat-resistant, for instance, and had very low surface friction."

Plunkett and other chemists at the Duponte company ultimately saw the potential for these chemicals. Its first use was in the Manhattan Project, a nuclear research program undertaken during World War II, where it was added as a coating on valves and seals to prevent corrosion. Eventually, the company and scientists branded it as Teflon, which then French engineer Marc Gregoire used to make nonstick cookware in 1954. Since then, Teflon and PFAS have been created, multiplied, and used in countless ways.

A few years later, Scotchguard was born when PFOS spilled on a tennis shoe—another accident—and left its coating repellant to dirt, oil, and water.

PFAS: the Health Concerns

So PFAS are everywhere, but what you may be wondering: What is their threat? The truth is that scientists have found these chemicals to be some of the most concerning modern substances for human, animal, and environmental health. Deemed "forever chemicals," these chemicals "build up in our bodies and never break down in the environment," reports the Environmental Working Group. Studies have linked various PFAS to cancer, weakened immunity, thyroid issues, developmental defects, and other health issues.

This is all ironic, given that Roy. J Plunkett was awarded the John Scott Award, which honors people who have contributed to the "comfort, welfare, and happiness of humankind." Yes, these substances may have made it easier for fried eggs to slide off pans and onto toast, but Teflon and PFAS have wreaked havoc on our systems and health. The Centers for Disease Control and Prevention reports that every American tested has been found to have PFAS chemicals in their blood.

Drinking water is one of the most common sources of exposure to PFAS chemicals. They could contaminate the drinking water of as many as 110 million Americans nationwide. The reason is that these forever chemicals easily leak out of products, migrate into the soil, water, and air, and never break down. The Agency for Toxic Substances and Disease Registry says that because of PFAS's widespread use and persistence in the environment, they are "found in the blood of people and animals all over the world and are present at low levels in various food products and the environment. Some PFAS can build up in people and animals with repeated exposure over time."

A 2022 study identified 57,000 sites contaminated by these chemicals in the United States. Current estimates from the Environmental Working Group show that about 200 million people may be drinking water contaminated with PFAS. The EPA shows that about 60 million people get their water from a system containing PFOA or PFOS, two of the most well-studied PFAS, at maximum levels above the new proposed limits. 

How to Reduce and Avoid PFAS

We've talked about PFAS before, notably in our e-book The Ultimate Guide to a Nontoxic Home, and we will never stop—at least, not until they're eradicated from our homes and lives. Now, this is a tall order, given how PFAS are everywhere. They are small, scary, and lasting. But we can take active measures to reduce them from our lives.

Firstly, some municipal efforts, such as those of Yorba Linda, California, give us hope. In February 2020, the Orange County city took its groundwater wells offline due to new California regulations of PFAS. When officials found PFAS, they partnered with the Orange County Water District to construct a new Ion Exchange treatment plant to remove them.

Now, in our immediate personal lives, here are some steps to take to reduce PFAS exposure:

  • Divest from using brands like Scotchgard, Stainmaster, Teflon, and other companies that tout resistance to oil, water, grease, and sticking.

  • Steer clear of furniture, carpets, and upholstery with added stain-repellent substances.

  • Invest in glass food containers. Many plastic wraps and containers are coated in anti-stick and anti-grease PFAS with zero warning.

  • Invest in a water filter that can reduce PFAS chemicals from your tap water. The EWG has an excellent water filter guide that offers tips, products, and steps to remove PFAS from your tap H2O.

  • Cook as much as you can at home. Whether eating in our carrying out, restaurants often cook on nonstick pans. Those chemicals can leak into your food.

  • Be discerning when purchasing makeup. Only buy from beauty brands that use clean ingredients you can pronounce.

  • Purchase our The Ultimate Guide to a Nontoxic Home for more ideas on removing PFAS from your life. If you already have it, gift it to a friend. 

The PrimaFoodie Guide to the Best Clean Sunscreens

For the past several years, the team at PrimaFoodie has been vetting clean sunscreens to deliver you the best options for optimal protection. By "clean," we mean the solution contains minerals to block UVA and UVB rays and includes zero artificial fragrance, parabens, emulsifiers, or additional ingredients linked to health concerns. 

We vet these yearly for several reasons: solutions change, which means efficacy and purity may also change, and researchers consistently reveal new data on ingredient safety. This year proved to be a big one in terms of news. The Environmental Working Group showed that approximately 75 percent of the 1,700 sun protection products its team evaluated “did not provide adequate sun protection” and contained "ingredients that could pose health risks."

Sunscreen and 'sunblock, ' terms used interchangeably, generally work one of two ways: Blocking the sun's rays with minerals, such as zinc oxide, or filtering and absorbing the rays with chemicals. Research has linked some of the most common chemical sunscreen ingredients, including oxybenzone and octinoxate, to pose health risks to marine and surrounding environmental life, thus presenting the possibility that these chemicals could impact human health. What's alarming about these two ingredients, along with other common sunscreen ingredients, octocrylene, homosalate, and avobenzone, is that they are absorbed through human skin and, subsequently, other organs.

In a news alert about its findings, the EWG stated the need for consumers to consider their sun protection wisely. "And some ingredients commonly found in sunscreens have been linked to both human and environmental concerns. But they're still widely used in hundreds of products, even though they have not been tested adequately for safety," said Emily Spilman, an EWG program manager for Healthy Living Science, in the news release. "It's outrageous that shoppers may be slathering these potentially harmful chemicals on their skin every day without the reassurance of those safety tests," 

The EWG has warned the public about sunscreen ingredients since it launched its first Guide to Sunscreens in 2007 and has been urging the FDA to review chemical sunscreen ingredients ever since. 

This year, we found that most of our favorites from our 2023 PrimaFoodie Sunscreen Guide still met our strict standards—and we added a few new ones to the mix. Here, you'll find mineral solutions that we believe to be clean and efficacious. But we urge you to always do your due diligence when choosing a sunscreen (or any personal care product): check your labels, know your ingredients, and listen to your gut. 

PrimaFoodie-Approved Clean Sunscreens for 2024

ALL GOOD: SPF 50+ SUNSCREEN BUTTER

All Good is committed to creating products that are  good for our skin and for the environment. This butter is thick, hydrating, fragrance-free, and excellent for the face and body. The compact tin makes it easy to toss into your backpack or purse. The company claims it is "very water resistant,"  but we still suggest ample applications if you're swimming.

KARI GRAN ESSENTIAL SPF 30 

As equally hydrating and protective as it gets, this super hydrating oil serum-type sunscreen feels like a supple serum. A raspberry seed and plum oils base gives the skin a hydrating quench with zero residue.

SOLARA SUNSCARE GO! DAILY DEFENSE MINERAL FACE SUNSCREEN

This lightweight SPF 30 recently came onto our radars. EWG-certified, it is blendable and silky. Founded by a mother who started vetting her personal care products after battling Lyme Disease and also seeing her children react to various sunscreen, the company promotes clean, minimal-ingredients responsible skincare

BADGER ACTIVE MINERAL SUNSCREEN CREAM

A simple, clean, universal SPF 30 cream made by a small, family-run New England company. Containing only five ingredients, one of which being super nourishing sea buckthorn oil, this is a great option for long days outside. It's a bit sticky and needs extra elbow grease to rub in. 

RAW ELEMENTS SUNSCREEN SPF 30+ FACE & BODY

This super thick mineral sunscreen paste goes a long way when you're outside for hours. Considering its thick consistency, it rubs in surprisingly well and leaves only a slight light white cast. This is a great pick for hiking and all-day summer outdoor exploring.

URSA MAJOR FORCE FIELD DAILY DEFENSE LOTION 

Ursa Major continues to be a pioneer in clean, effective skincare. Their unscented, lightweight moisturizer is great for the face, neck, chest, and arms. It absorbs almost immediately without leaving any residue. The aloe vera, jojoba, and shea butter are super moisturizing. 

VIVE SANA DAILY PROTEZIONE SPF 30

This is an easily spreadable, hydrating, tinted sunscreen for the face, neck, and décolletage we've loved for years. Vive Sana's products are mostly made of organic ingredients and are free of chemicals and artificial additives. The Daily Protezione SPF 30 offers the physical protection of zinc oxide with no stickiness or pastiness. 

KINFIELD DAILY DEW SPF 35 

We've long loved Kinfield's products, and this all-day SPF is a winner. It has a silkier texture, which results in a dewy, glowy finish. We love how the aloe and sea kelp add a dose of hydration and antioxidants. 

KIDS

ALL GOOD: SPF 30 KIDS SUNSCREEN LOTION

This fragrance-free lotion is rather light, which makes applying it to little ones' skin quick and easy. We found that a little goes a long way, and it leaves minimal to no residue. It also claims to be water—and sweat-resistant for up to eighty minutes.

BABO: CLEAR ZINC SUNSCREEN SPF 30

Babo is a thick, mineral all-over sunscreen lotion for babies, children, and adults. It's EWG-certified, free of any concerning chemicals, fragrances, or nanoparticles, and deemed hypoallergenic. We especially like how it doesn't run in the eyes. It's supposed to be waterproof for up to eighty minutes, making it great for long days on the beach.

TINTED

IRIS & ROMEO BEST SKIN DAYS

This serum-moisturizer-SPF, which doubles as a light daily foundation with SPF 25 protection, is buttery, silky, and moisturizing. It goes on smoothly and quickly settles into the complexion. We love that it also protects from blue light and contains hydrating rose and moringa oils.

ILIA C Beyond Triple Serum SPF 40

Touted for its "encapsulation technology," this foundation-like sunscreen delivers phytonutrients and vitamin C. It's a clean, light, dewy face product that covers many skin tones daily.

SUNTEGRITY 5-IN-1 TINTED SUNSCREEN MOISTURIZER

This light, tinted SPF 30 comes in four shades. It's sheer, goes on smoothly, and blends in rather quickly, but it does require reapplications throughout the day. We wish the company offered a wider range of shades to include dark complexions.

SAINT JANE LUXURY SUN RITUAL PORE SMOOTHING SPF 30

This natural mineral sunscreen has been a PrimaFoodie favorite for the second year in a row. Rich in botanical antioxidants, including green tea, and hydrating ingredients, it doubles as a protective face moisturizer. We love how sheer it is, with the perfect amount of tint that results in no white cast from the zinc oxide, only a dewy finish. It is quite thin, so reapplication throughout the day is necessary.

SAIE SUNVISOR

We keep returning to Saie products, some of today's most hydrating and gorgeously textured clean makeup items. The 'Sunvisor' is super light and hydrating, with a tinted blend of aloe, hyaluronic acid, vitamin E, and zinc oxide, offering great light coverage all day. It sinks it and leaves no white cast. 

TRUE BOTANICALS SKIN BARRIER SUN SHIELD SPF 30

Part sun filter, part tinted moisturizer, this mineral-based lightweight face lotion sinks in quickly. Given its thin texture, we find it best used as a daily moisturizer, but it doesn't fit the bill for a day at the beach.