Propylparaben ●
TL;DR. This ingredient is a preservative used to inhibit yeast, mold, and some bacteria in water-containing formulas. It is often paired with other preservative types to broaden coverage.
What does Propylparaben do in a cosmetic formula?
This ingredient is a preservative used to inhibit yeast, mold, and some bacteria in water-containing formulas. It is often paired with other preservative types to broaden coverage.
Is Propylparaben clean?
Clean-beauty frameworks commonly flag this ingredient because of endocrine-activity concerns and regulatory use limits in some regions. It is generally low-sensitizing for most skin, but its restricted-list status creates clear clean-standard friction.
Is Propylparaben sustainable?
This material is typically petrochemical-derived, though the aromatic acid backbone can also be made from other industrial feedstocks. It is expected to biodegrade more readily than silicone or fluorinated materials, but its aquatic endocrine-screening profile keeps it under environmental scrutiny.
Is Propylparaben COSMOS-approved?
It is not permitted under COSMOS-natural or COSMOS-organic standards. From a Green Chemistry perspective, it has efficient preservation performance at low levels, but weaker alignment due to synthetic sourcing and clean-standard restrictions.
How does Propylparaben work chemically?
The molecule is an aromatic ester with a phenolic hydroxyl group and a three-carbon alkyl ester side chain, which gives it more oil solubility than shorter-chain members of the same preservative family. It is typically used at low fractions of a percent, with EU cosmetic limits of 0.14% expressed as acid for this specific long-chain ester, alone or in combination with its closely related counterpart.
Last updated 2026-05-13