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  • Title: Instrumental and dermatologist evaluation of the effect of glycerine and urea on dry skin in atopic dermatitis.
    Author: Lodén M, Andersson AC, Andersson C, Frödin T, Oman H, Lindberg M.
    Journal: Skin Res Technol; 2001 Nov; 7(4):209-13. PubMed ID: 11737814.
    Abstract:
    BACKGROUND/AIMS: Moisturising creams are useful treatment adjuncts in inflammatory dermatoses and have beneficial effects in the treatment of dry, scaly skin. The effects on dryness and skin permeability of a new moisturising cream with 20% glycerine was compared with its placebo and with a medicinally authorised cream with 4% urea (combined with 4% sodium chloride) in the treatment of dry skin. METHODS: Patients (n=109) with atopic dermatitis were treated for 30 days with a moisturiser in a randomised, parallel and double-blind fashion. Transepidermal water loss (TEWL) and skin capacitance were assessed instrumentally, and changes in the dryness of the skin were assessed by the dermatologist. RESULTS: No difference in TEWL was found between glycerine treatment and its placebo, whereas a lower value was found in the urea-treated area compared to the glycerine-treated area. No difference in skin capacitance was found. The clinical assessment of dryness showed urea to be superior to glycerine in treating the condition. CONCLUSIONS: Moisturising creams are different, not only with respect to composition but also with respect to their influence on skin as a barrier to water in patients with atopic dermatitis.
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