Iodopropynyl Butylcarbamate
INCI · Iodopropynyl Butylcarbamate · also IPBC
Overview
A preservative with strong activity against moulds and yeasts, used at very low levels and usually alongside a broader partner that covers bacteria. Regulators in several regions restrict both its concentration and the product types it may appear in.
Who it's for
Anyone using a water-containing product, which needs some preservative system — the alternative is not a cleaner formula but a spoiling one.
Cautions
It is a documented contact allergen and appears on standard patch-test series, which is why it is regulated tightly and why people with a known reaction learn to scan for the abbreviation IPBC. This is a reason to read labels if you have that history, not a general safety verdict.
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What does Iodopropynyl Butylcarbamate do in skincare?
A preservative with strong activity against moulds and yeasts, used at very low levels and usually alongside a broader partner that covers bacteria. Regulators in several regions restrict both its concentration and the product types it may appear in.
Is Iodopropynyl Butylcarbamate considered safe for skin?
It is a documented contact allergen and appears on standard patch-test series, which is why it is regulated tightly and why people with a known reaction learn to scan for the abbreviation IPBC. This is a reason to read labels if you have that history, not a general safety verdict.