Hormone Disrupting Chemicals


Prevention is better than cure, together with Breast Cancer UK that has always been our view and over the years we have shared many workshops and invited key scientists to share their evidence.

Today we reiterate the message that EDC’s and environmental polutants that mimic the hormone oestrogen. Breast cancer UK has made an excellent video explaining this Below from the BCUK website we share again the key ingredients to watch out for.



Used as preservatives (e.g in shampoo, face creams and body lotions) to lengthen shelf life but have no specific cosmetic purpose. Look for: butylparaben, methylparaben, ethylparaben and propylparaben on ingredients lists. Parabens are known EDCs and may be linked to breast cancer.



Used as solvents for fragrance, to hold colour and to make the alcohol in perfumes undrinkable. Only Diethyl phthalate (DEP) is used in the EU. Found in perfume, nail polish and hair spray, DEP is an EDC and may be linked to breast cancer.

Synthetic Musks

Used as fragrances in perfumes, cosmetics and aftershave. Polycyclic musks, galaxolide (HHBC) and tonalide (AHTN) are EDCs and nitro musk, musk ketone is oestrogenic and may be linked to breast cancer.



Used in antiperspirants and deodorants, lipstick and some toothpastes. Aluminium chloride and aluminium chlorohydrate are oestrogen mimics and limited scientific evidence suggests they may be associated with increased breast cancer risk.



Used in antibacterial soaps, deodorants and toothpastes as a preservative and to reduce bacterial growth. It’s an oestrogen mimic which may be linked to breast cancer.



Used at restricted concentrations as a nail hardener, in soaps and make-up in the form of formaldehyde-releasing preservatives (e.g. DMDM hydantoin, diazolidinyl urea, imidazolidinyl urea and Quaternium-15). Formaldehyde is a known carcinogen and has been linked to increased breast cancer risk.

UV filters

UV filters such as benzophenones, ethylhexyl methoxycinnamate and homosalate are added to sunscreen products to protect skin against the damaging effects of UV light. They are also added to other products to protect from UV damage during storage. They are oestrogenic and build up in fat tissue (bioaccumulate). They can increase skin penetration of certain chemicals including those that are toxic.


For more information Please visit the breast cancer website.

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