Deodorants are personal care products designed to mask or eliminate body odor caused by bacterial growth in sweat. They typically contain active ingredients that either neutralize odor or inhibit the growth of odor-causing bacteria. Deodorants come in various forms, including sticks, sprays, gels, and roll-ons, catering to different preferences and skin types. Some deodorants also include antiperspirant properties, which reduce sweating by blocking sweat glands. Common ingredients in deodorants may include aluminum compounds, baking soda, and essential oils. Users often choose deodorants based on scent, effectiveness, and skin sensitivity, making it a personal choice for daily hygiene.