TEWL Probe
DermaLab TEWL measurement is based upon the vapor gradient (open chamber) principle, which for many years has been considered the “gold standard”. The open chamber design maintains the free natural evaporation from the surface without influencing the environment over the measurement area, thus ensuring unbiased and accurate readings. Inside the measurement head, the sensors are protected to eliminate variation caused by air currents and direct incident light, which are problems usually associated with the open chamber method.
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