What are xeno-oestrogens?

Xeno-oestrogens are synthetic, man-made compounds that mimic the action of naturally occurring oestrogen produced in our cells and can alter hormonal balance and activity. 

Xeno-oestrogens are exacerbating any oestrogen related condition. This can be a serious problem for anyone with pre-existing oestrogen dominance (very common for a lot of women these days) and related conditions such as;

  • uterine fibroid tumors,
  • PCOS (Polycystic Ovarian Syndrome)
  • fibrocystic breasts,
  • breast cancer,
  • glandular dysfunction,
  • male infertility,
  • endometriosis,
  • hair loss,
  • weight gain,
  • depression

Some of the problems xeno-oestrogens are associated with include;

  • mimicking the natural hormones in our bodies, such as oestrogens
  • blocking production of our natural hormones, such as androgens (male hormones), thyroid hormone, and progesterone
  • altering the way in which natural hormones are produced, eliminated or metabolised
  • modifying the number of hormone receptors we have and thus the amount of hormonal signaling in our bodies
  • stimulating the release of hormones or other natural substances that affect the balance of our hormones in our bodies
  • girls and boys are reaching puberty too early as a result of these disrupters.
  • hormonal stimuli that contributes to inappropriate growth of mammary tissue cells, resulting in a problem society is calling “man boobs.”

Here is a list of some of the chemicals that are xeno-estrogens:


  • 4-Methylbenzylidene camphor (4-MBC) (sunscreen lotions)
  • Parabens (methylparaben, ethylparaben, propylparaben and butylparaben commonly used as a preservative)
  • Benzophenone (sunscreen lotions)

Industrial products and Plastics:

  • Bisphenol A (monomer for polycarbonate plastic and epoxy resin; antioxidant in plasticizers)
  • Phthalates (plasticizers)
  • DEHP (plasticizer for PVC)
  • Polybrominated biphenyl ethers (PBDEs) (flame retardants used in plastics, foams, building materials, electronics, furnishings, motor vehicles).
  • Polychlorinated biphenyls (PCBs)


  • Erythrosine / FD&C Red No. 3
  • Phenosulfothiazine (a red dye)
  • Butylated hydroxyanisole / BHA (food preservative)
  • Propyl gallate (anti-oxidant)

Building supplies:

  • Pentachlorophenol (general biocide and wood preservative)
  • Polychlorinated biphenyls / PCBs (in electrical oils, lubricants, adhesives, paints)


  • Atrazine (weed killer)
  • DDT (insecticide, banned)
  • Dichlorodiphenyldichloroethylene (one of the breakdown products of DDT)
  • Dieldrin (insecticide)
  • Endosulfan (insecticide)
  • Heptachlor (insecticide)
  • Lindane / hexachlorocyclohexane (insecticide, used to treat lice and scabies)
  • Methoxychlor (insecticide)
  • Fenthion
  • Nonylphenol and derivatives (industrial surfactants; emulsifiers for emulsion polymerization; laboratory detergents; pesticides)


  • Chlorine and chlorine by-products
  • Ethinylestradiol (combined oral contraceptive pill)
  • Metalloestrogens (a class of inorganic xenoestrogens)
  • Alkylphenol (surfactant used in cleaning detergents)

How to reduce your exposure to xeno-oestrogens;


  • Avoid all pesticides, herbicides, and fungicides.
  • Choose organic, locally-grown and in-season foods, wherever possible.
  • Wash and peel non-organic fruits and vegetables.
  • Buy hormone-free meats and dairy products to avoid hormones and pesticides.
Photo Credit ElasticComputeFarm


  • BPA plastics have been replaced with BPA-free plastics (Bisphenol-S) but are just as toxic as they are still endocrine disruptors and in some cases these new plastics are even worse than the original BPA!
  • Reduce the use of plastics whenever possible.
  • Do not microwave food in plastic containers.
  • Avoid the use of plastic wrap to cover food for storing, freezing or microwaving.
  • Use glass or ceramics whenever possible to store food.
  • Do not leave plastic containers, especially your drinking water, in the sun.
  • If a plastic water container has heated up significantly, throw it away.
  • Don’t refill plastic water bottles.
  • Avoid freezing water in plastic bottles to drink later.
  • Open the windows in your car to remove xeno-oestrogens released from the plastic on the dashboard etc, before turning on the circulating air-conditioning.

Home and Household Products

  • Use chemical free, biodegradable laundry and household cleaning products.
  • Choose chlorine-free products and unbleached paper products (i.e. tampons, menstrual pads, toilet paper, paper towel, coffee filters).
  • Use a chlorine filter on shower heads and filter drinking water
  • Open windows and avoid being in the house (as much as possible) for a few days after it’s been painted.

Health and Beauty Products

  • Avoid creams and cosmetics that have toxic chemicals and oestrogenic ingredients such as parabens and stearalkonium chloride.
  • Minimize your exposure to nail polish and nail polish removers.
  • Use naturally based fragrances, such as essential oils.
  • Use chemical free soaps and toothpastes.
  • Read the labels on condoms and diaphragm gels.

At the Shops and Office

  • Cash Register Receipts are coated in BPA, and a new study finds that the carcinogenic chemical quickly contaminates the blood of anyone who handles one.
  • Be aware of noxious gas such as from copiers and printers, carpets, fibreboards, and at the petrol station.