
The customers normally have already care products or even make-up or powder applied when they enter a shop. On make-up and powder, it is very difficult to take measurements or camera images. If you cleanse the skin, however, it may take up to a couple of hours for the skin to regenerate the normal conditions (especially of sebum) completely. Therefore, ideally perform the measurement on skin cleansed approx. two hours prior to the measurement. In practice, unfortunately, this is impossible.
We recommend therefore, dabbing the skin with a dry cosmetic tissue at parts where you would like to measure or take images. Remove make-up from the skin gently without rubbing. Rubbing takes away the sebum and enhances the micro circulation. Should this not be possible, switch to untreated skin areas, e.g. close to the hair or the ears, under the chin or for melanin measurements to hands and arms.
Relativize, as sebum level after dabbing away the make-up is still lower than it would be without a product applied. Also relativize when performing measurements under high temperature and high air humidity (sweating). In any case, the measurement reflects the current state and needs of the skin which may be different at another time (e.g. seasonal changes).