1999
DOI: 10.1111/j.1600-0846.1999.tb00127.x
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Comparative study of five instruments measuring stratum corneum hydration (Corneometer CM 820 and CM 825, Skicon 200, Nova DPM 9003, DermaLab). Part II. In vivo

Abstract: Background/aims: The hydration state of stratum corneum can be measured with different instruments. In the present study, five instruments were compared under different experimental in vivo conditions: Corneometer CM 820 and CM 825 (both capacitance based), Skicon 200 (conductance), Nova DPM (impedance based capacitance) and DermaLab (capacitance). Methods: Seven anatomical sites were tested, a sorption‐de‐sorption test (SDT) and a moisture accumulation test (MAT) were performed. Different hydration states w… Show more

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Cited by 88 publications
(73 citation statements)
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“…The correlations calculated by Bielfeldt et al [31] add to the uncertainties relating to where in the skin the capacitance signal is coming from and suggest an influence of the SC water gradient. In addition, previous studies have stated that capacitance is more sensitive for dry to very dry skin, while conductance is more sensitive for highly hydrated skin [14,60,61]. The comparisons described in this review tend to confirm those results.…”
Section: Resultssupporting
confidence: 76%
“…The correlations calculated by Bielfeldt et al [31] add to the uncertainties relating to where in the skin the capacitance signal is coming from and suggest an influence of the SC water gradient. In addition, previous studies have stated that capacitance is more sensitive for dry to very dry skin, while conductance is more sensitive for highly hydrated skin [14,60,61]. The comparisons described in this review tend to confirm those results.…”
Section: Resultssupporting
confidence: 76%
“…As the hydration changes from 40 to 110, the impedances (at 15 kHz) of the meander electrode in channel 1 and the interdigitated electrode in channel 2 change from 255 to 24 X and from 2.54 to 2.52 MX, respectively. The interdigitated electrodes in channel 2 provides a useful design for electrodes [23,24,37], but the complexity in the associated distribution of electrical field lines leads to complications in theoretical analysis [38]. The symmetric sensor geometry of channel 3 and 4 enables direct comparison to outputs from the CMM, which has similar electrode construction, and the symmetry facilitates analytical modeling.…”
Section: Frequency-dependent Impedance Changes With Hydration Levelsmentioning
confidence: 99%
“…The purpose of the present study was (i) to investigate whether the corneocyte surface area changes in premenopausal vs. postmenopausal women, and (ii) to determine whether transepidermal water loss and hydration parameters assessed with a sorption-desorption test (SDT) [18] and a moisture accumulation test (MAT) [19][20][21][22] correlate with observed differences in corneocyte surface area.…”
Section: Introductionmentioning
confidence: 99%