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Preservatives

What Preservatives is & what it does

"Preservatives" is a generic INCI label that stands in for one or more antimicrobial agents added to a formula rather than a single defined molecule. In a skincare or sunscreen product, preservatives keep water-based formulas free of bacteria, yeast, and mold so the product stays safe and stable through its shelf life and repeated use. Common members of this group include phenoxyethanol, parabens, and organic acids, and the exact identity is not disclosed when the blanket term is used.

What do preservatives do in skincare?

Preservatives protect water-containing skincare and sunscreen products from contamination by bacteria, yeast, and mold. Without them, a wet formula could grow microbes during storage and daily dipping of fingers into the jar. They keep the product safe and stable for its intended shelf life.

Are preservatives in skincare safe?

Cosmetic preservatives are used at low, regulated concentrations and are generally considered safe for their purpose, since an unpreserved water-based product would pose a bigger contamination risk. The blanket "Preservatives" label does not name the specific agents, so sensitivity depends on which ones are used. People prone to reactions can check for the exact preservative names if disclosed.

Are preservatives natural or synthetic?

"Preservatives" is a generic term that can cover both synthetic and naturally derived antimicrobial agents. The group includes synthetic molecules like phenoxyethanol and parabens as well as nature-derived options such as certain organic acids. The label alone does not tell you which type is in the product.

Sunscreens with Preservatives

We rate 11 sunscreens that contain it, showing the top 10 by overall score:

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