House of PLLA from South Korea has a number of products that contain “Methyl Perfluoroisobutyl Ether,” a type of dangerous Per- and polyfluoroalkyl substance (PFAS) that can penetrate into your body through the skin. These are “forever chemicals” that accumulate and stay in the body, increasing your odds of cancer, immune dysregulation, and hormone disruption. PFAS also disrupts sleep and may be a contributor to cardiovascular disease. Making the toxicity worse, some people are using these products following microneedling or other procedures that disrupt the skin’s barrier function, allowing an even higher dose of these noxious chemicals.

House of PLLA from South Korea has a number of products that contain “Methyl Perfluoroisobutyl Ether,” a type of dangerous Per- and polyfluoroalkyl substance (PFAS) that can penetrate into your body through the skin. Here’s the label from one of their products, HOUSE OF PLLA® HOP+ CAVIPLLA+O2® Multi-Serum. Notice Methyl Perfluoroisobutyl Ether is the second leading ingredient:

Here’s what the Environmental work group has to say about Methyl Perfluoroisobutyl Ether:

To be clear, Per- and polyfluoroalkyl substances (PFAS) are a class of man-made chemicals, including PFOA, PFOS, and GenX. These chemicals can bioaccumulate in the bodies of humans over time and have been linked to cancer, thyroid disease, liver damage, decreased fertility, and hormone disruption.

PFAS chemicals are made up of a chain of linked carbon and fluorine atoms, which do not degrade in the environment. PFASs are so bad that scientists are unable to estimate an environmental half-life for PFAS, which is the amount of time it takes 50% of the chemical to disappear, according to the National Institute of Environmental Health Sciences. In other words, these chemicals last so long that scientists haven’t been able to measure their degradation.

Now think about using these ingredients in a product that is used after microneedling or other procedures that allow chemicals to better penetrate the skin through a disrupted barrier. Of course the microneedling opens channels in the skin that allow molecules to better penetrate the skin into the body. So now that second leading ingredient, Methyl Perfluoroisobutyl Ether, in HOUSE OF PLLA® HOP+ CAVIPLLA+O2® Multi-Serum is penetrating the skin into your body where it may last a lifetime. And that lifetime may be cut short because of the PFAS staying in the body and increasing your odds of cancer and an inability of the immune system to fight infection.

In another product called, HOP+ CAVIPLLA+O2® Advanced Volumizing Serum, the South Korean company also uses Methyl Perfluoroisobutyl Ether. Here’s the label:

Oher Koren companies, such as TiN5 are using dangerous Methyl Perfluoroisobutyl Ether in their products. Here’s the ingredient list for TiN5 The Concentrate:

Notice that TiN5 features not just one PFAS, but you you’re dosed with two PFAS ingredients (Methyl Perfluorobutyl Ether, and Methyl Perfluoroisobutyl Ether) when you use their “The Concentrate.”

There is bipartisan support to ban these ingredients from cosmetics, something I endorse, but until the law actually passes, the onus is upon you to check the labels of your skin care products for PFAS. Bottom line, if you want to use PLLA, poly-l-lactic acid, use a product that is clean and doesn’t contain PFAS ( or “fragrance” or “trehalose” also found in these products).