Deodorants and antiperspirants serve different purposes but are often combined in a single product. Deodorants primarily target odor, while antiperspirants reduce sweat.
Deodorants work by addressing the bacteria that cause body odor. Sweat itself is odorless, but when it interacts with bacteria on the skin, it produces an unpleasant smell. Deodorants contain antimicrobial agents that kill or inhibit these bacteria, reducing odor. They also often include fragrances to mask any remaining smells.
Antiperspirants, on the other hand, aim to reduce the amount of sweat produced. They contain aluminum-based compounds, such as aluminum chloride or aluminum zirconium, which dissolve in sweat and form a gel-like plug in the sweat glands. This temporarily blocks the glands, reducing the amount of sweat that reaches the skin's surface. Over time, the plugs are naturally expelled from the glands.
Both products are typically applied to the underarms, where sweat and odor are most prevalent. They are available in various forms, including sprays, sticks, gels, and roll-ons, to suit personal preferences.
While effective, some concerns have been raised about the safety of aluminum compounds in antiperspirants, though scientific evidence does not conclusively link them to health issues like breast cancer or Alzheimer's disease. Nonetheless, some people opt for natural deodorants that do not contain aluminum or synthetic fragrances.
In summary, deodorants combat odor by targeting bacteria and adding fragrance, while antiperspirants reduce sweat by temporarily blocking sweat glands with aluminum compounds.