BUTYLPARABEN ●
TL;DR. This ingredient is an antimicrobial preservative used to protect water-containing formulas from yeast, mold, and some bacteria. It is often paired with other preservative types to broaden coverage.
What does BUTYLPARABEN do in a cosmetic formula?
This ingredient is an antimicrobial preservative used to protect water-containing formulas from yeast, mold, and some bacteria. It is often paired with other preservative types to broaden coverage.
Is BUTYLPARABEN clean?
Many clean-beauty programs exclude this preservative class because of endocrine-screening concerns and consumer sensitivity, even though direct irritation rates are generally low at legal use levels. It appears on several restricted or excluded lists, with tighter limits in the EU than in older global preservative practice.
Is BUTYLPARABEN sustainable?
This material is typically made from petrochemical or mixed synthetic feedstocks. It is generally readily biodegradable, so persistence is not the main issue, but nonrenewable sourcing and aquatic endocrine-activity scrutiny create sustainability friction.
Is BUTYLPARABEN COSMOS-approved?
It is not permitted in COSMOS-natural or COSMOS-organic products as a preservative. Its biodegradability helps its Green Chemistry profile, but petrochemical sourcing and clean-standard restrictions keep it poorly aligned overall.
How does BUTYLPARABEN work chemically?
The molecule is a four-carbon alkyl ester of a hydroxy-substituted aromatic carboxylic acid, giving it more oil affinity than shorter-chain members of the same preservative family. It is usually used at low fractional percentages, is most effective in the acidic to mildly acidic range, and is often combined with co-preservatives because solubility in water is limited.
Last updated 2026-05-13