Blacklisted Ingredients

All # A B C D E F G H I J K L M N O P Q R S T U V W X Y Z

Imidazolidinyl Urea

An antimicrobial preservative that slowly releases carcinogenic formaldehyde into a product over time (see Formaldehyde). People may develop a contact allergy to formaldehyde or to the ingredient itself. The American Society of Contact Dermatitis lists it as one of its core allergens, even in concentrations as low as 2%. Longer storage times and higher temperatures increase the amount of formaldehyde released from the formaldehyde-releaser, which can lead to a higher risk of skin reaction.  

Sources:


https://online.personalcarecouncil.org/ctfa-static/online/lists/cir-pdfs/pr254.pdf

https://www.cancer.org/cancer/cancer-causes/formaldehyde.html

https://www.contactderm.org/i4a/pages/index.cfm?pageID=3563

http://www.safecosmetics.org/get-the-facts/chemicals-of-concern/formaldehyde/

https://ntp.niehs.nih.gov/ntp/htdocs/chem_background/exsumpdf/imidazolidinylurea_508.pdf

Iodopropynyl Butylcarbamate (IPBC)

A preservative in cosmetic, personal care, and industrial products. It may cause dermal irritation or contact allergy. The American Society of Contact Dermatitis lists it as one of the core allergens, even in concentrations as low as 0.1%. When inhaled, it is toxic to the lungs.





Sources:


http://www.cosmeticsinfo.org/ingredient/iodopropynyl-butylcarbamate-0


https://online.personalcarecouncil.org/ctfa-static/online/lists/cir-pdfs/pr43.pdf


https://www.ncbi.nlm.nih.gov/pubmed/12022126


https://www.contactderm.org/i4a/pages/index.cfm?pageID=3563


http://www.contactdermatitisinstitute.com/pdfs/allergens/Iodopropynyl%20butylcarbamate.pdf



Isobutylparaben

Isobutylparaben is in the parabens family of preservatives used in food, pharmaceuticals, and beauty products. Clinical studies on animals have indicated that parabens may mimic estrogen and act as a potential hormone (endocrine) system disruptor.  


Sources:


https://onlinelibrary.wiley.com/doi/abs/10.1002/jat.958


https://onlinelibrary.wiley.com/doi/pdf/10.1002/jat.860


http://www.safecosmetics.org/get-the-facts/chemicals-of-concern/parabens/


http://ec.europa.eu/health/scientific_committees/consumer_safety/docs/sccs_o_041.pdf


Isopropylparaben

Isopropylparaben is in the parabens family of preservatives used in food, pharmaceuticals, and beauty products. There is some evidence that parabens can accumulate in human breast tissue. Clinical studies on animals have indicated that parabens may mimic estrogen and act as a potential hormone (endocrine) system disruptor.  


Sources:


https://onlinelibrary.wiley.com/doi/abs/10.1002/jat.958


https://onlinelibrary.wiley.com/doi/pdf/10.1002/jat.860


http://www.safecosmetics.org/get-the-facts/chemicals-of-concern/parabens/


http://ec.europa.eu/health/scientific_committees/consumer_safety/docs/sccs_o_041.pdf





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