What are whole-body deodorants, and do you need them?

Whole-body deodorants, often advertised in social media and supermarkets, are products that are marketed to combat body odor across the entire body, not just in specific areas like the armpits. These deodorants are being promoted by both small and large cosmetic brands, utilizing various forms of advertising including digital and influencer content.

From a biological standpoint, body odor is primarily caused by bacteria that feed on sweat. Different types of sweat glands are responsible for this. Apocrine sweat glands, found in areas such as the armpits and groin, produce sweat that can lead to body odor due to bacterial breakdown. Eccrine sweat glands, which cover most of the body, typically release water and electrolytes and do not contribute to body odor.

Experts suggest that showering daily can help control body odors, as the eccrine sweat glands, which are mainly responsible for perspiration, do not produce a strong smell. However, a daily shower can also help control bacterial overgrowth in areas like under the breasts or feet where moisture can accumulate.

Deodorants and antiperspirants serve different purposes. Deodorants often contain antibacterial ingredients and fragrances to mask odors, but they do not prevent sweating. Antiperspirants, on the other hand, work by blocking the output of sweat glands, thus preventing the sweat from being produced in the first place and thus reducing the occurrence of body odor. While whole-body deodorants may contain ingredients that help absorb moisture, they do not stop sweating.

However, using whole-body deodorants can potentially disrupt the skin microbiome, the complex ecosystem of microorganisms that protect against pathogens and maintain skin health. The high concentration of antibacterial ingredients in these products can lead to adverse side effects, including odors, infections, rashes, and sensitive skin.

Therefore, it is recommended to consult with a healthcare professional if body odor or excessive sweating is a concern, as the underlying cause may be multifaceted and could be indicative of a medical condition.