I am confused, are silicones bioaccumulative?
I have been getting so many mixed messages regarding silicones lately.
Belinda Carli from the Institute of Personal Care Science says they are degraded and safe.
A search in Pubmed says that dimethicone and cyclotetrasiloxane are degraded in the environment and are ok, but the study was paid for by Dow Corning https://pubmed.ncbi.nlm.nih.gov/18505514/ .
On the other hand, Credo Beauty says the opposite; silicones are on the dirty list. https://cdn.shopify.com/s/files/1/0637/6147/files/The_Dirty_List_PDF_August_Update.pdf?v=1598294504 and EWG has confusing information which seems to be in line with Credo. What is Credo’s motive?
Out of exasperation, I did a Google Scholar search and I found this article https://www.proquest.com/openview/824e59bd102d70d9235bb2f64aa76b64/1?pq-origsite=gscholar&cbl=32741
It says; silicones, polymers and quats are poorly biodegradable. Thanks to wastewater treatment, clay catalized- hydrolysis and photo-mineralization, they are either processed or removed. They are not persistent, and are monitored.
Please share if you have any additional information.
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