DIAZOLIDINYL UREA ●
TL;DR. This ingredient is an antimicrobial preservative used mainly in water-based cosmetics to limit bacterial growth and support product shelf life.
What does DIAZOLIDINYL UREA do in a cosmetic formula?
This ingredient is an antimicrobial preservative used mainly in water-based cosmetics to limit bacterial growth and support product shelf life.
Is DIAZOLIDINYL UREA clean?
From a clean-beauty perspective, it is one of the more flagged preservative systems because it releases small amounts of formaldehyde over time. It can be a contact-allergy issue for people already sensitive to formaldehyde or related preservative systems.
Is DIAZOLIDINYL UREA sustainable?
This material is synthetic and not a strong fit for renewable-sourcing narratives. Its main sustainability friction is not land use, but its release chemistry and weaker alignment with readily biodegradable, low-concern preservation strategies.
Is DIAZOLIDINYL UREA COSMOS-approved?
It is not permitted under COSMOS-natural or COSMOS-organic standards. Its reliance on formaldehyde-release preservation gives it poor alignment with Green Chemistry preferences for benign, readily biodegradable, low-sensitization ingredients.
How does DIAZOLIDINYL UREA work chemically?
This compound is a synthetic nitrogen-rich heterocyclic preservative that slowly releases formaldehyde in aqueous systems, which is the basis of its antimicrobial effect. Typical use is up to 0.5% in many regulatory frameworks, and release can increase with time, heat, and water-rich formulations.
Last updated 2026-05-13