Trial reportContact dermatitis2026
Post-Occlusion Application of Skin Protective Creams Does Not Affect Occlusion-Induced Barrier Changes: A Randomized Controlled Experimental Study.
Trial report in Contact dermatitis, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
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Authors and funding
5 authors.
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Abstract
backgroundGlove occlusion increases skin susceptibility to irritants ('occlusion effect'). Previous experimental data showed that applying protective creams (PCs) before glove occlusion does not prevent this effect and may even aggravate irritant responses.
objectivesTo assess whether the application of PCs after glove occlusion modifies the occlusion effect.
methodsIn a randomized, single-blind (participants were blinded) study, 68 healthy volunteers were examined over 10 days. Two commercially available PCs (A, B) and one standardized model cream (C) were applied after occlusion for over 4 h to defined forearm sites. On day 8, sites were exposed to 0.5% sodium lauryl sulphate (SLS) for 24 h to evaluate skin irritation susceptibility. Additional conditions included (I) daily application of cream C without occlusion until day 7 or (II) until Day 8, with the final application 10 min before SLS exposure. Skin responses were assessed by TEWL, corneometry, colourimetry and clinical scoring. Wilcoxon signed-rank tests were used to compare control areas to sides after PC application.
resultsPost-occlusion application of the PCs did not demonstrate a consistent protective effect. Cream A slightly reduced SLS-induced TEWL (10.88 g/m
conclusionsIn the majority of study scenarios, application of PCs after glove occlusion did not have a clinically relevant positive effect on the skin responses studied. Protective efficacy probably depends on formulation and timing, underscoring the need for evidence-based recommendations.
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