ALFRED PASIEKA / SCIENCE PHOTO LIBRARY ALFRED PASIEKA / SCIENCE PHOTO LIBRARY
Molecular representation of methylparaben, one ester of parahydroxybenzoic acid. It is a commonly used preservative in cosmetics and pharmaceuticals. They are becoming increasingly controversial, however, because they have been found in breast cancer tumours and also shown the ability to slightly mimic oestrogen.
Model release not required. Property release not required.