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Figure 2

From: Skin hydration dynamics investigated by electrical impedance techniques in vivo and in vitro

Figure 2

(A) Study design to investigate the kinetics of skin hydration with the Hydration Probe (HP), Nevisense (NE), and four-electrode impedance spectroscopy (4E). The effect of hydration on skin conductance measured with (B) HP in vivo and (C) HP in vitro, (D) NE in vivo (at 315 kHz), (E) NE in vitro (at 315 kHz), and (F) 4E in vitro (at 251 kHz). The effect of hydration on the impedance at 1 kHz measured with (G) NE in vivo, (H) NE in vitro, and (I) 4E in vitro. Finally, the effect of hydration on the MIX parameter measured with (J) NE in vivo, (K) NE in vitro, and (L) 4E in vitro. Error bars represent ± SEM where n = 12 for HP in vivo (B) and n = 9 for HP in vitro (C), n = 12 for NE in vivo (D,G,J) and NE in vitro (E,H,K); 4E: n = 5 (F,I,L).

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