sodium-dodecyl-sulfate and Rosacea

Rosacea is a common and chronic disorder characterized by flushing, erythema, papules, pustules, and telangiectasia on the central part of the face. Because the facial skin of individuals with rosacea is particularly sensitive, irritants can trigger a worsening of the signs and symptoms of the disease. This enhanced sensitivity is thought to be linked to a deficient stratum corneum barrier function.. In the present study, 20 individuals receiving twice-daily applications of metronidazole 0.75% gel for at least 15 days applied a gentle non-irritating moisturizing cream (Cetaphil Moisturizing Cream) twice daily for 15 days on one half of the face; the other side remained treated with metronidazole only and served as the control.. Clinical assessments, confirmed by biophysical measurements (electrical capacitance, transepidermal water loss (TEWL), and lactic acid stinging test), provided evidence that the moisturizer contributed to the restoration of the skin barrier: skin dryness, roughness and desquamation were much improved and skin sensitivity was significantly reduced. Skin properties and skin discomfort were also greatly enhanced and the patients were very satisfied with the product.. It can thus be concluded that in the management of rosacea, basic skin care regimens, including daily use of a therapeutic moisturizer, offer optimal benefits.

Topics: Administration, Cutaneous; Adolescent; Adult; Aged; Anti-Infective Agents; Drug Administration Schedule; Drug Combinations; Electric Capacitance; Fatty Alcohols; Female; Gels; Humans; Lactic Acid; Male; Metronidazole; Middle Aged; Propylene Glycols; Rosacea; Severity of Illness Index; Skin Care; Sodium Dodecyl Sulfate; Treatment Outcome; Water Loss, Insensible

A good skin care regimen is a critical part of rosacea treatment; however, care must be taken to choose nonirritating products because individuals with rosacea tend to have sensitive skin, and irritants can trigger a worsening of symptoms. This study examines the use of Cetaphil Gentle Skin Cleanser (a nonalkaline nonirritating cleanser) in patients with rosacea. To eliminate the confounding effects of various treatments, the cleanser was studied for a 2-week period in the absence of rosacea therapy following a 2-week washout period in patients with mild to moderate rosacea. During the washout period, patients were asked to cleanse twice daily with Dove Sensitive Skin Bar. During the 2-week study period, patients were monitored for skin barrier function through transepidermal water loss (TEWL) and corneometry; patients also were monitored for rosacea severity. Thirty patients were enrolled. No significant increase in TEWL was demonstrated at any point during the study, indicating that the gentle skin cleanser did not damage the skin barrier. Additionally, the cleanser was shown to maintain skin hydration. Furthermore, a post hoc statistical analysis suggests there was a significant reduction (P<.05) in investigator-assessed rosacea severity on the cheeks, forehead, and nose at the end of week 1 and on the cheeks, forehead, and chin at the end of week 2 compared with the end of the washout period (after 2 weeks of cleansing with Dove Sensitive Skin Bar). The mild nonirritating action of the gentle skin cleanser was supported by the lack of adverse events and the tolerability shown in the study. There were no increases in erythema, scaling, dryness, stinging, burning, or lack of smoothness in the skin during the 2-week study period, despite the fact that patients were not being treated for their rosacea during the study. These results indicate that Cetaphil Gentle Skin Cleanser may be a good choice for the cleansing part of a total rosacea skin care regimen.

Topics: Administration, Cutaneous; Adult; Aged; Dermatologic Agents; Drug Combinations; Fatty Alcohols; Female; Humans; Male; Middle Aged; Propylene Glycols; Rosacea; Severity of Illness Index; Skin; Skin Care; Sodium Dodecyl Sulfate; Water Loss, Insensible

The aim of the study was to disclose interactions between epidermal barrier, skin irritation and sensitization in healthy and diseased skin. Transepidermal water loss (TEWL) and stratum corneum hydration (SCH) were assessed in adult patients with atopic dermatitis (AD), rosacea and healthy controls. A 4-h patch test with seven concentrations of sodium lauryl sulphate was performed to determine the irritant threshold (IT). Contact sensitization pattern was revealed by patch testing with European baseline series. Subjects with a lower IT had higher TEWL values and lower SCH. Subjects with positive allergic reactions had significantly lower IT. In AD, epidermal barrier deterioration was detected on both volar forearm and nasolabial fold, while in rosacea, impeded skin physiology parameters were observed on the facial skin only, suggesting that barrier impediment is restricted to the face in rosacea, in contrast with AD where the abnormal skin physiology is generalized.

Topics: Adult; Case-Control Studies; Dermatitis, Atopic; Dermatitis, Contact; Epidermis; Female; Humans; Irritants; Male; Middle Aged; Patch Tests; Permeability; Rosacea; Skin; Sodium Dodecyl Sulfate; Water Loss, Insensible

The medical management of rosacea increasingly has involved not only the appropriate selection of topical medication but also patient education and specific recommendations regarding appropriate skin care. The recognition that epidermal barrier dysfunction and transepidermal water loss (TEWL) play a pathophysiologic role in rosacea and that skin moisturization may help to mitigate signs and symptoms of the disease has led to a deeper appreciation of the importance of proper skin care in the treatment of rosacea. Data from a percutaneous penetration study performed using human skin suggest that any of the tested moisturizer lotions may be applied either before or after azelaic acid gel 15% without a major change in the percutaneous absorption profile of azelaic acid.

Topics: Administration, Topical; Dermatologic Agents; Dicarboxylic Acids; Drug Combinations; Emollients; Humans; In Vitro Techniques; Kinetics; Propylene Glycols; Rosacea; Skin Absorption; Sodium Dodecyl Sulfate; Water Loss, Insensible