A preservative from the group of formaldehyde releasers.
What it is
Diazolidinyl urea is a heterocyclic substituted urea used as a preservative; it belongs to the formaldehyde releasers. CosIng lists it as a preservative. In the EU it is listed in Annex V (allowed preservatives).
Where it is used
Found in shampoos, cleansers, creams, lotions and makeup.
Limits of interpretation
The INCI list shows which ingredients are present, not how much of each. Above 1%, ingredients are listed in descending order of weight; below 1% the order is free.
See the EU regulation section for the applicable limits and labelling conditions. The label does not show the concentration actually used.
Functions
- Preservative
- Exclusively or mainly intended to inhibit the development of micro-organisms in the cosmetic product. All authorised preservatives are substances in the positive list of Annex V to the Cosmetics Regulation 1223/2009.
EU regulation
EU · Annex V, entry 46N-(Hydroxymethyl)-N-(dihydroxymethyl-1,3-dioxo-2,5-imidazolidinyl-4)-N'-(hydroxymethyl)urea
- Maximum concentration
- 0.5%
- As of
- 3 November 2026 · (EC) 2009/1223
Products with this ingredient (62)
- Fluid Skin Balance – podkład kryjący (nr 19 – 26) · Pierre René
- Forever After 13.5 fl oz · Australian Gold
- AG After Sun Moisturizer with Hemp 16 fl oz · Australian Gold
- Forever After Tan Extender 2.8 fl oz · Australian Gold
- HN White Peach & Hibiscus Tan Extender 18 fl oz · Australian Gold
- Forever After 22 fl oz · Australian Gold
- Lirene Ultra-softening cream-mask STOP CALLUSSNES FOOT 30% UREA 75 ml · Lirene
- Lirene SUN KIDS Sun protection body milk for kids SPF 30 150 ml · Lirene
- Lirene SUN KIDS Sun protection face cream for kids SPF 50+ 50 ml · Lirene
- Lirene SUN Sun protection emulsion for sensitive skin SPF 50+ 175 ml · Lirene
- Lirene SUN Moisturizing emulsion for irritations SPF 30+ 175 ml · Lirene
- Lirene SUN KIDS Sun protection body milk for kids SPF 50 150 ml · Lirene