What Is Ethylparaben? Ethylparaben is a preservative that is used in the formulation of cosmetics and personal care products in order to extend the shelf-life by preventing microbial contamination. Ethylparaben is the ethyl ester of p-hydroxybenzoic acid. It is a member of the class of compounds known as parabens. Other common parabens include methylparaben, butylparaben, … Continue reading Ethylparaben: Why Parabens Are Actually Safer Than Other Alternatives