Antibacterial soaps may cause allergy

Chemicals commonly found in antibacterial soaps may negatively affect the immune system, contributing to allergies in youngesters, a new study says.

Triclosan, a chemical widely used in a variety of products, including antibacterial soaps, toothpaste, acne products, deodorant, shaving gel, pens, diaper bags and “natural” cosmetics, belongs to a class of toxins known as endocrine-disrupting compounds (EDCs).

Previous studies have reported that the compound may damage reproductive organs and the production of sex and thyroid hormones.

Exposure to high levels of triclosan and Bisphenol A (BPA) -- found in many plastics for example, as a protective lining in food cans -- has a negative influence on immune system in youngsters, the University of Michigan School of Public Health found.

Individuals aged 18 and younger with high triclosan serum levels are more likely to be diagnosed with allergies and hay fever.

The cell-mediated immunity is reported not to be at a proper level in these individuals, the study found.

According to lead researcher Allison Aiello, their findings about triclosan “may support the 'hygiene hypothesis,' which maintains living in very clean and hygienic environments may impact our exposure to microorganisms that are beneficial for the development of the immune system.”