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Antiperspirants do increase risk of breast cancer

Antiperspirant use is a risk factor for breast cancer, according to scientists.

We recently learned that the Swiss government was considering banning the use of aluminium salts in antiperspirants. In making up their mind they would do well to heed the results of an epidemiological study just published in EBioMedicine which show that the use of antiperspirants is a risk factor for breast cancer.

In the largest study of its kind, the team based at the Medical University of Innsbruck, Austria, conducted an age-matched case-controlled study, involving 209 female breast cancer patients and 209 healthy controls, to investigate breast cancer and the self-reported use of underarm cosmetic products.

They found that the use of antiperspirants was significantly associated with breast cancer risk. This risk was increased substantially (Odds Ratio of 3.88) in individuals who applied antiperspirant more than once a day before they had reached the age of 30.

The alarming conclusion is that frequent use of antiperspirants in females under the age of 30 predisposed them to a significantly higher risk of breast cancer in later life.

The team also made measurements of aluminium in breast tissue and they found a significantly higher content of aluminium in breast tissue in breast cancer than in controls. Previous research in the field has suggested that the aluminium content of breast tissue in individuals with breast cancer was higher in tissue closer to the underarm, the area of the breast with the highest incidence of breast tumours.

Aluminium-based antiperspirants are effective because they are a significant source of biologically-reactive aluminium (Al3+(aq)) which inhibits the activity of sweat glands in the area of application of the product, most often the underarm. Aluminium may accumulate in breast tissue as a result of the application of aluminium salts to the skin but also because perspiration is a major route of excretion of aluminium from the body and therefore preventing sweating will also prevent the excretion of aluminium from sweat glands in the underarm region. These are two very good reasons why the aluminium content of breast tissue close to the underarm region is higher than elsewhere.

Aluminium has been a suspected human carcinogen for more than 100 years. The findings in this new paper confirm that aluminium can now be added to the list of carcinogens which are known to contribute towards the aetiology of breast cancer.

 

Professor Chris Exley
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EvyB
EvyB
6 years ago

Very interesting article regarding the use of anti perspirants using Aluminium and the incidence of Ca Breast.
Is Ammonium Alum which is a natural salt and used in “natural deodorants” implicated in anyway one wonders ?

Chris Exley
Chris Exley
6 years ago
Reply to  EvyB

Sorry for the late reply, I have only just seen this. The quick answer is yes. All aluminium-based antiperspirants are essentially equal where this is concerned. There have been attempts by manufacturers of so-called ‘Crystal’ alum-based antiperspirants to say otherwise but these are aluminium-based just like the conventional antiperspirants.

Joy Warren
Joy Warren
6 years ago

There is an alternative to aluminium salts and that is magnesium chloride. However, the first two applications sting until the skin has become used to the compound. Not only does this prevent under-arm odour but it is a way of topping up the body’s store of magnesium. What do you think about thisalternative?

EvyB
EvyB
6 years ago

Hi. I do not know about magnesium chloride but would be interested to hear the experts opinion.
I only use a little talc at the moment having had breast cancer.
My husband uses a natural Deodorant from the U.S. called Jason which has a huge number of ingredients listed but advertised as Tea Tree. This was purchased from an independent Health Food Shop. I would also be interested in hearing opinions of this product. Said husband is pleased with it.

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