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Urea (also known as Carbamide) is produced naturally by the skin and is part of the essential Natural Moisturizing Factor (NMF) which regulates skin’s moisture content. Urea is hygroscopic, which means it is able to bind moisture into the outermost layer of skin. It is also keratolytic, meaning helps the skin to get rid of dead skin cells dead skin cells, to make it smooth again, and has anti-itch and anti-microbial properties. As a result, it improves natural exfoliation and soothes and smoothes the skin’s surface. As a substance produced naturally by the skin, Urea is well-tolerated even by dry and sensitive skin. Because all of these effects and very good study data, Urea is the gold standard in treating of dry skin.*

^{* Reference: Augustin M et al., diagnosis and treatment of xerosis cutis – a position paper, JDDG 2019, DOI: 10.1111/ddg.13906}

Ceramides are important lipids in the hydrolipid film (which protects the external layers of skin). Produced naturally in healthy skin, they strengthen the skin barrier, helping to prevent moisture loss due to evaporation and keeping out irritants that can cause inflammation and itching. When skin’s Ceramide levels fall the skin barrier is impaired. Skin can start to lose water and become dry and irritated.

Eucerin uses synthetic Ceramides that are biologically-identical and that enhance skin’s natural barrier – locking in moisture and preventing dryness and irritation.

Healthy skin contains Natural Moisturizing Factors (NMF) which attract and bind in water to the outermost layers of skin, helping to prevent it from drying out and becoming scaly and rough. The NMF present in skin include substances such as amino acids, inorganic salts, Lactate and Urea. The UreaRepair PLUS range replicates the natural composition of NMF in healthy skin, giving dry skin the substances it needs for optimal hydration.