Parabens...steer clear!

Parabens are chemicals widely used as a preservative by cosmetic and pharmaceutical companies in everyday products used by most individuals in the United States. Mostly found in shampoos, conditioners, lotions, makeup and perfumes, their efficacy as preservatives, in combination with the low cost are two reasons they are so commonly found in these products. 
Some of the many common products containing parabens
However, this unfortunate chemical group is not banned from products. They are toxic and low concentrations have been found in breast cancer tumors. Another major concern is the fact that parabens mimic estrogen, which may be a factor in the increasing prevalence of early puberty in girls.