Skin TEWL Measurement Probe
Product Details:
One of the most popular probes available as part of the DermaLab Combo is the one for measuring transepidermal water loss (TEWL) of skin. The human body constantly loses water due to evaporation which is quantified with the parameter TEWL. The barrier function of the skin determines skin TEWL which gets altered by cosmetic and skin care products. While evaluating such products and their efficacy, TEWL is used to ensure the safety of the product.
To measure TEWL using the corresponding probe of the DermaLab Combo, the following procedure needs to be followed:
1. Open the DermaLab Combo application software in the tablet PC and select TEWL from the list of parameters
2. Immediately, environmental temperature and relative humidity are calculated and displayed corresponding to Envir T °C and Envir RH %.
3. To begin testing, place the probe with the perforated foam facing up and measuring chamber facing the skin area which is to be analysed
4. With application of light pressure on the probe, press Start in the software
5. The number corresponding to TEWL keeps ticking until it stabilises which is denoted by the numbers turning black
6. In addition, you also get temperature (C) and RH (%) values recorded by the upper and lower sensors in the probe and a graph denoting TEWL vs. time
7. Once you have taken all the necessary readings, you have the option to save or print the measurements