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CAS 94-13-3
Also known as: propylparaben, propyl paraben, propyl 4-hydroxybenzoate
Part of family: Parabens
Propylparaben is a chemical used as a preservative in cosmetics, personal care products, and some pharmaceuticals to prevent the growth of bacteria and mold. You might find it in lotions, shampoos, or makeup. It is regulated because the European Union's REACH program has identified it as a substance of very high concern due to potential endocrine-disrupting properties, meaning it could interfere with hormone systems in the body. This concern is currently under review. Additionally, EU cosmetics rules limit its use in leave-on products for children under three years old. The classification is based on scientific evidence of possible harm to human health or the environment, not a confirmed danger. This summary draws on public regulatory data; the linked source is authoritative. Source: European Chemicals Agency (ECHA) Candidate List of substances of very high concern for Authorisation (https://echa.europa.eu/candidate-list-table).
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