Opinions on the harmfulness of deodorant or anti-transparent to health are divided: Some say that the amount of dangerous substances is so small that they can hardly harm your body. Others claim that the active ingredient used in most common deo or antiperspirant can even be carcinogenic. We are talking about the ingredient aluminium chlorohydrate, popularly called aluminium salt. There is still much uncertainty about its long-term health effects, but one thing is certain: as we say in Dutch, it has a smell to it.

Aluminium is known to have epigenetic effects, irreversible changes in gene functions. In addition, the substance can cause DNA changes and may be endocrine disrupting. Not surprisingly, aluminium is being scientifically researched worldwide as a possible cause of reduced fertility and even breast cancer. If on the latter, opinions are divided. For instance, one breast cancer study says there is a link between aluminium in breast cells and faster tumour formation. But the KWF refutes this. If you are systematically exposed to aluminium for a long time, through intake of food, water and use of cosmetics, it can be harmful to your health. But research is still in its infancy, and the long-term effects are still unknown. Until then, however, I would rather be safe than sorry.