Parabens are a group of synthetic preservatives commonly used in cosmetics. They are commonly found at the bottom of the ingredient listing, if one is available.
Common parabens are methylparaben, propylparaben and butylparaben.
Parabens and other synthetic preservatives are known to cause irritations to sensitive skin. Parabens were also found to cause heart tissue problems over an extended time period. They are suspected to influence breast cancer and are known endocrine disruptors that influence the hormonal system and can affect fetal development.