Two Swiss researchers, André-Pascal Sappino and Stefano Mandriota, have raised concerns in a study published in the International Journal of Cancer. Their work suggests that aluminum salts in deodorants may promote tumor development. They tested various deodorants on mice to investigate this potential risk.
Mouse mammary cells were exposed to aluminum salt doses 1,500 to 100,000 times lower than those in typical deodorants. After several months, these cells were injected into three groups of healthy mice. The outcome? All groups developed tumors to varying degrees, with some forming metastases. The researchers stated: "Our work […] has demonstrated that these salts are not harmless […] they induce marked alterations in the cells of the mammary gland recapitulating key stages of malignant transformation."
So why haven't aluminum salts been banned from deodorants? Experts emphasize that lab results in mice don't necessarily translate to humans. Dr. Luc Multigner cautions: "These works do not make it possible to de facto deduce real consequences in humans," as noted in Sciences et Avenir. Health specialist Khalil Zaman adds: "the reality of the human body is not that of the laboratory." He calls for additional studies to confirm or refute the findings.
To be continued.
