ALL YOU NEED FOR TEWAMETERY® - IN-VIVO OR IN-VITRO
What is TEWL and how we measure it?
Our skin is losing water continuously by evaporation through epidermis (outer layer). This process is an important part of metabolism and called called TransEpidermal Water Loss or TEWL which is stated in g/h/m².
Transepidermal water loss increases when the skin barrier is damaged or impaired, allowing excess moisture content to evaporate from the skin. In healthy skin, TEWL is directly proportional to skin hydration. For instance many skin diseases have inverse ratios of TEWL and skin hydration. The result of high TEWL is fragile, dehydrated, and/or irritated skin. So, by measuring TEWL with TEWL measurement device, it helps us to evaluate skin barrier function.
The C+K Electronic has complete range of TEWL probe known as Tewameter® for different skin areas, applications and for In-vitro or In-vivo assessments. All Tewameter® probes work based on the “open chamber” measurement, a method which is acknowledged as the best way for TEWL assessment. “Open chamber” method gives the possibility of continuous TEWL measurement with no saturation and minimum environment influence.
Tewameter® probe is a hollow cylinder including sensors of temperature and relative humidity.
The probe measures the density gradient of the water evaporation from the skin Δc which is proportional to the TEWL.
Our available TEWL probes:
- Tewameter® TM Hex: The ultimative TEWL measurement device with one head (NEW)
- Tewameter® TM 300: Former model of TM Hex
- Tewameter® TM Nano: Ultra-Small TEWL Measurement Probe for Special Skin Sites
- Tewameter® Triple TM 330T: TEWL measurement probe with three flexible measurement heads
- Invitro Tewameter® VT 310: TEWL measurement directly on Franz cells
- Tewitro® TW 24: TEWL measurement on up to 24 cultured skin wells simultaneously.
