"Aluminum-based compounds are used as the active ingredient in antiperspirants. These compounds form a temporary plug within the sweat duct that stops the flow of sweat to the skin's surface. Some research suggests that aluminum-based compounds, which are applied frequently and left on the skin near the breast, may be absorbed by the skin and cause estrogen-like (hormonal) effects. Because estrogen has the ability to promote the growth of breast cancer cells, some scientists have suggested that the aluminum-based compounds in antiperspirants may contribute to the development of breast cancer." Something which us guys think we're safe from. But it's not just women that can develop breast cancer. Although very rare amongst men around 350 men a year are diagnosed, so it's important to prevent this however we can. "Some research has focused on parabens, which are preservatives used in some deodorants and antiperspirants that have been shown to mimic the activity of estrogen in the body’s cells. Although parabens are used in many cosmetic, food, and pharmaceutical products, according to the FDA, most major brands of deodorants and antiperspirants in the United States do not currently contain parabens. Our Eucalyptus Deodorant doesn't contain Aluminium or Parabens. A no brainer when it comes to your under arm health and freshness!
You can read more about the effects that aluminium and parabens using the link below: