Most antiperspirant worries center on the active ingredient — an aluminum-based compound that temporarily plugs the sweat ducts and prevents you from perspiring.
Typically, antiperspirants are coupled with a deodorant, which contains the pleasant scent that stops you from stinking. They may also contain a number of inactive ingredients.
Antiperspirants and Cancer
A few studies in recent years have theorized that aluminum-based antiperspirants may increase the risk for breast cancer.
According to the authors of these studies, most breast cancers develop in the upper outer part of the breast — the area closest to the armpit, which is where antiperspirants are applied. The studies suggest that chemicals in antiperspirants, including aluminum, are absorbed into the skin, particularly when the skin is nicked during shaving. These studies claim that those chemicals may then interact with DNA and lead to cancerous changes in cells, or interfere with the action of the female hormone estrogen, which is known to influence the growth of breast cancer cells.
Considering that one out of every eight women will develop breast cancer at some point in her lifetime, the idea that antiperspirants might somehow contribute to the disease is a pretty serious claim. Yet experts say the claims don’t hold up to scrutiny.
Antiperspirants and Alzheimer’s Disease
Back in the 1960s, a few studies found high levels of aluminum in the brains of people with Alzheimer’s disease. The research suddenly called into question the safety of everyday household items such as aluminum cans, antacids, and antiperspirants.
But the findings of these early studies weren’t replicated in later research, and experts have essentially ruled out aluminum as a possible cause of Alzheimer’s.
If you’d prefer to go natural, you could try an aluminum-free antiperspirant alternative.
From: Stephanie Watson – http://webmd.com