Aim of the study was to evaluate by non-invasive instrumental evaluations tolerance and hydrating activity of a face topic product, to be applied twice a day, morning and evening, for an uninterrupted period of 8 weeks, by volunteers of both sexes, aged 45-60, who meet the inclusion and exclusion criteria required by the study procedure . It was also aim of this study to evaluate the hydrating activity of a single product application on the skin damaged by repeated stripping corneum (short term evaluation versus untreated control area).
Study Type
INTERVENTIONAL
Allocation
NA
Purpose
TREATMENT
Masking
NONE
Enrollment
18
Short term evaluation to investigate the hydrating activity of a single application of the study product on the forearms (volar surface) after repeated stripping procedure,measured immediately after stripping execution (T0i), 1,8 and 24 hour/s after product application (T1h, T8h and T24h).
Long term evaluation to investigate the hydrating activity of the repeated application of the study product on the face (twice a day, for an uninterrupted period of 8 weeks), measured at basal visit (T0) and after 4 and 8 week-treatment (T4, T8)
DERMING
Monza, Monza-brianza, Italy
Change of superficial skin hydration after a single product application
Variation of skin electrical capacitance value measured with Corneometer CM825 (Courage - Khazaka, Köln, Germany) after a single product application on the skin area damaged by corneum stripping
Time frame: Immediately after stripping (T0i), 1 hour after product application (T1h), 8 hours after product application (T8h), 24 hours after product application (T24h)
Change of transepidermal water loss (TEWL) after a single product application
Variation of transepidermal water loss value measured with Tewameter® TM300 (MPA 5 Courage-Khazaka, Germany) after a single product application on the skin area damaged by corneum stripping
Time frame: Immediately after stripping (T0i), 1 hour after product application (T1h), 8 hours after product application (T8h), 24 hours after product application (T24h)
Change of superficial skin hydration after repeated product application
Variation of skin electrical capacitance value measured with Corneometer CM825 (Courage - Khazaka, Köln, Germany) after repeated product application on the face
Time frame: Baseline (T0), 4 weeks (T4), 8 weeks (T8)
Change of deep skin hydration after repeated product application
Variation of tissue dielectric constant value of deep skin layers measured with MoistureMeterD (Delfin Technologies, Kuopio - Finland) after repeated product application on the face
Time frame: Baseline (T0), 4 weeks (T4), 8 weeks (T8)
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