Research SectionSubclinical, non-erythematous irritation with an open assay model (washing): sodium lauryl sulfate (SLS) versus SODIUM LAURETH SULFATE (cas 1335-72-4) (SLES)

Add time:08/31/2019    Source:sciencedirect.com

Compared to exaggerated hand washing procedures, an open non-exaggerated assay better approximates consumer surfactant use. Our goal was to observe skin surface modifications induced by an open test with regard to discriminating between surfactant solutions. This human in vivo assay provided information about the effect of only three washes at the laboratory and a week of at-home use. Dorsal hand and volar forearm were compared. The results demonstrated that this clinical model permits exploration of subclinical surfactant-induced irritation. Both the volar forearm and the dorsal hand are capable of discriminating between the effects of sodium lauryl sulfate (SLS) and SODIUM LAURETH SULFATE (cas 1335-72-4) (SLES). Squamometry proved to be a sensitive assessment technique for detecting surfactant-induced subclinical skin surface alterations and for differentiating surfactant effects in this open application assay, in as few as three washes.

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