An antibacterial substance is an agent that interferes with the growth and reproduction of bacteria, and may kill bacteria, usually a pesticide.

Uses: kills bacteria and microbes.

Found in: hand soap, multi-purpose cleaners, toilet bowl cleaners, detergents, skin care products, and is now bonded to many products such as kitchen tools, highchairs, and baby toys.

Effect: Acute: eye, nose and throat irritant. Chronic: may enable some bacteria to build up resistance, and may weaken the immune system.

Alternatives: essential oils such as lavender, lemon, geranium, and tea tree.