stating they will keep monitoring the scientific literature. Members of the Scientific Committee on Consumer Safety (SCCS) of the European Commission concluded similarly in 2015, that "due to the lack of adequate data on dermal penetration to estimate the internal dose of aluminium following cosmetic uses, risk assessment cannot be performed." In the light of new data in 2020 the SCCS considered aluminium compounds safe up to 6.25% in non-spray deodorants or non-spray antiperspirants and 10.60% in spray deodorants or spray antiperspirants. Myths and claims related to aluminium compounds in deodorants Common myths and marketing claims for aluminium in deodorants (including aluminum in alum products) include claims: That aluminium in deodorants applied to the skin is a risk factor for some cancers (notably breast cancer) and some forms of dementia. That aluminium in antiperspirants can enter the body (possibly through shaving cuts). That aluminium in alum "natural deodorant" products is "safer" because it is "too large" to enter the body. Of note, the parts of the body which are commonly shaved and also commonly treated with deodorants, such as the armpits, contain substantial deposits of subcutaneous fat. Shaving cuts would be extremely unlikely to penetrate sufficiently beyond the very outer layers of the skin, for much if any product to enter the bloodstream. Alzheimer's disease A 2014 review of 469 peer-reviewed studies examining the effect of exposure to aluminum products concluded "that health risks posed by exposure to inorganic depend on its physical and chemical forms and that the response varies with route of administration, magnitude, duration and frequency of exposure. These results support previous conclusions that there is little evidence that exposure to metallic Al, the Al oxides or its salts increases risk for Alzheimer's disease, genetic damage or cancer". Breast cancer The claim that breast cancer is believed to be linked with deodorant use has been widely circulated and appears to originate from a spam email sent in 1999; however, there is no evidence to support the existence of such a link. The myth circulates in two forms: Antiperspirants block the "purging" of toxins which build up in the body and cause breast cancer: There is no truth to this claim. Sweat glands simply do not have this function, and this myth is not scientifically plausible. Perspiration from the eccrine sweat glands comprises 99% water, with some salt (sodium chloride) and only trace amounts of lactic acid (almost