Glutaral ●
TL;DR. This ingredient functions mainly as a preservative and antimicrobial agent, used to suppress bacterial and fungal growth in water-based formulas. It is more common in industrial disinfection contexts than in modern beauty products.
What does Glutaral do in a cosmetic formula?
This ingredient functions mainly as a preservative and antimicrobial agent, used to suppress bacterial and fungal growth in water-based formulas. It is more common in industrial disinfection contexts than in modern beauty products.
Is Glutaral clean?
From a clean beauty perspective, this ingredient has significant friction because it is a strong sensitizer and can be irritating even at low exposure levels. Many clean standards and retailer restricted lists do not accept it, and regulators limit its use tightly where it is allowed.
Is Glutaral sustainable?
This material is typically made from petrochemical feedstocks rather than renewable sources. It is not considered highly persistent, but its biocidal activity creates wastewater concerns before dilution and breakdown.
Is Glutaral COSMOS-approved?
This ingredient is not permitted under COSMOS-natural or COSMOS-organic standards for cosmetic preservation. Its synthetic petrochemical origin, high biological reactivity, and restrictive handling profile give it weak Green Chemistry alignment despite eventual biodegradation.
How does Glutaral work chemically?
The molecule is a five-carbon dialdehyde, meaning it has two reactive aldehyde groups that can crosslink amino groups in proteins and disrupt microbial cell function. Regulatory cosmetic use, where allowed, is typically capped around 0.1%, with extra labeling or format restrictions in some regions because sensitization risk rises with exposure.
Last updated 2026-05-13