Just read this
Whilst in 1926 just over 30% of breast cancers started in the outer upper quadrants, in 1947–1967 it was between 43–48% and in 1994 already as many as 60.7%. This equates to a doubling of the relative frequency of cancer cases in the proximity of the armpit within just less than 70 years.
Accordingly, it was believed that only approx. 4 micro- grams of aluminium is absorbed each time a deodorant containing aluminium was used in both armpits.The investigation, upon which this assumption is based, stems from 2001 [9]. For a long time it was regarded as the main argument for the case proving that no quantity of aluminium worth mentioning is absorbed from deodorants. Thus hardly any further studies were conducted. The problem with this is that, at the time, only 2 persons were investigated: one man and one woman. Moreover, the results of the investigation showed considerable differences between the two test subjects.
If microwounds are caused by shaving then the protective layer of the skin is damaged. Although aluminium salts should in fact not be used on damaged skin, who is aware of this and who heeds this? Probably no one can say exactly how much aluminium is actually absorbed by the damaged skin. Nevertheless, results from a cell culture model do indicate an aluminium uptake 6–10 times greater than with intact skin
As the overwhelming number of female breast tumours are hormone-dependent, the hormone-like effect of aluminium and its compounds is of particular significance. Aluminium has the ability to bind with the oestrogen receptor and imitate oestrogen-related functions
Metallo- oestrogens also trigger changes in the oestrogen binding locations of the genes in the cell nucleus. In breast gland cells this leads to increased cell division. As a result, more errors in the reproduction of the DNA arise, which then has a correspondingly increased cancer risk.
If one now draws a parallel between metallo-oestrogens, oestrogen receptors and frequency of breast cancer, then the interesting question poses itself as to whether aluminium and other oestrogen-related metals are involved as the original cause or partial cause in 70% of the high risk breast cancer cases. The question probably cannot be answered with any great certainty but it does allow an insight into the dimensions of the difficulties faced.
Given everything that has so far become known, it must be demanded that the possible health risks from deodorants containing aluminium should be taken seriously enough to protect consumers as far as possible.
One of the authors is the President of the International Board of Clinical Metal Toxicology (NGO), Scientific Advisor of the German Medical Association of Clinical Metal Toxicology (NGO)
That's sciency enough for me. Published around the time your link was reviewed, which seems a little sparse on the references, only 9?
I'm not convinced that if a new product was brought into being with such a question mark over it, that it would be allowed to be sold. It's enough for me to be wary. Are you saying that only if we have moderate alcohol consumption (is two bottles of wine a month ok?) and exercise regularly are we allowed to be concerned with aluminium in deodourants?
And this Aluminium salts are used as the active antiperspirant agent in underarm cosmetics, but the effects of widespread, long term and increasing use remain unknown, especially in relation to the breast, which is a local area of application. Clinical studies showing a disproportionately high incidence of breast cancer in the upper outer quadrant of the breast together with reports of genomic instability in outer quadrants of the breast provide supporting evidence for a role for locally applied cosmetic chemicals in the development of breast cancer. Aluminium is known to have a genotoxic profile, capable of causing both DNA alterations and epigenetic effects, and this would be consistent with a potential role in breast cancer if such effects occurred in breast cells. is from a paper published in 2005 . Why has there been so little work done in this area?