All of these products make bugs unhappy. Why would you disregard the chemical warnings and put those that are most harsh on your skin? Your skin, and the skin of your child, are the body's largest organ. It absorbs without discretion. What it absorbs must be processed by your liver. The side effects might not manifest for years, but they will contribute to the toxicity level of the body. Making choices to limit toxic chemicals is the right thing to do.