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Isobutylparaben

What Isobutylparaben is & what it does

A preservative in the paraben family used to guard against microbial growth. It is effective at low concentrations.

Is Isobutylparaben safe?

Isobutylparaben is a preservative from the paraben family that has been used in cosmetics to prevent the growth of bacteria and mold. Regulatory views vary by region: some authorities, including the EU, have banned isobutylparaben in cosmetic products due to a lack of safety data, so it is uncommon in newer formulas. If you have concerns about a specific product, check its current ingredient list and local regulations.

What does Isobutylparaben do in skincare?

Isobutylparaben works as a preservative, helping keep a product free of microbial growth so it stays usable over its shelf life. It does not provide an active skincare benefit on its own. Many brands have replaced it with other preservative systems.

Is Isobutylparaben natural or synthetic?

Isobutylparaben is a synthetic ingredient, produced industrially as an ester of para-hydroxybenzoic acid. While related parabens occur in some plants, the cosmetic-grade material used in products is manufactured.

Sunscreens with Isobutylparaben

We rate 34 sunscreens that contain it, showing the top 10 by overall score:

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