Harnstoff,Ph, Eur., USP

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INCI: Urea

A very good product to better retain moisture in the skin. It is used for impure, dry and horny skin. It has a dandruff-dissolving effect (e.g. in psoriasis), relieves itching and promotes sebum flow.


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INCI: Urea

Urea consists of carbon dioxide and ammonia, which combine in a chemical process under high temperature and pressure to form urea.
Urea is mainly used in cosmetic products because of its moisturising properties. Depending on the concentration used, urea has numerous positive effects on the skin, for example it binds water, improves the skin's ability to absorb moisture, is antimicrobial and relieves itching. Urea is often used in combination with glycerine, as they complement each other and create a synergistic effect. From an application concentration of 3%, it promotes the drainage of sebum, which can help with blemished skin and acne in particular.

Application concentration:
-as a moisturiser 2-5% (up to 10% for neurodermatitis)
-in powders 1-3%

Urea is easily soluble in warm water. However, it should not be heated to high temperatures, otherwise it will break down into its individual components. It is not heat-resistant and can withstand a maximum temperature of 25°C.
For this reason, it should not be incorporated into the water phase in cream production, but rather dissolved in water beforehand and incorporated into the lukewarm phase like an active ingredient.

Urea tends to decompose in aqueous formulations/systems under alkaline reaction. A pungent ammonia odour is an indication of this decomposition process. The ph-dependent preservatives become ineffective due to the increase in the ph value. To delay this reaction, it makes sense to slightly buffer the pH value with sodium lactate and lactic acid.
Storing the emulsion in an airless dispenser, for example, is helpful in delaying this process. (A usage period of 3 months is recommended here).

Water: very easily soluble (1:1)
Glycerol 85%: 50 in 100
Ehtanol  95%: 10 in 100
Fatty oils, waxes and other lipids: practically insoluble

Incompatibility: Active ingredients and excipients whose pH stability optimum is in the acidic range

Preservation: in aqueous preparations preferably with potassium sorbate 0.14% with acidic buffering

Category: Additives and Active substances
SKU: 0460
Appearance‍: Powderwhitecrystalline
Important criteria‍: palm oil-freevegansyntheticanimal non testingNon GMO
Induction‍: hand warming phase
Skin type/ condition‍: dry skinevery skin typePsoriasisimpure/oily skin
Comment‍: Hair careFacial tonerBody careFace care
Solubility‍: see long description
Effect‍: anti-itchingmoisturising
Application concentration‍: 1,0-10,0%
Country of origin‍: Germany
CAS Nummer‍: 57-13-6
pH-value‍: pH stability optimum 6.2
Incorporation‍: Not heat-resistant
Tolerates a maximum of 25°C
Storage‍: Store the material in a cool and dry place. The product is without anti-clumping agent and therefore tends to clump.