Objective assessment of roughness of dry skin in a pediatric population
Dry skin is a common condition during childhood. Clinical scoring of dry skin includes tactile evaluation of the skin surface to assess roughness. To our knowledge, no instrumental evaluation of roughness has ever been performed to objectively score skin dryness in a pediatric population, nor to document the clinical efficacy of skin care products specifically developed to address dry skin condition.
A study has been conducted on 80 subjects with normal or dry skin (as scored by dermatologists and pediatricians, 40 children each), aged from 1 day to 4 years. Roughness has been measured on the face using an innovative tribo-acoustic device. Topographic properties have been measured in parallel using a Visioscan device to assess roughness through image analysis of skin surface. Measurements have been performed at T0 and after 21 days of daily face cream product application.
Measurement of tribo-acoustic signal on skin surface shows that roughness is significantly higher in dry skin than in normal skin. No difference between normal and dry skin has been observed using Visioscan device. After 21 days of product application, significant improvement of both tribo-acoustic and topographic parameters has been observed on normal skin (respectively 8.6% and 12.7%) and also on dry skin (respectively 16.4% and 13.7%), suggesting global improvement of skin roughness following product application.
This study shows that objective assessment of roughness, in particular tribo-acoustic measurement, could be of great interest to characterize dry skin in a pediatric population and to demonstrate clinical efficacy of skin care products.
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Ms Gaelle Bellemere
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