The use of alternative testing methods in cosmetology is important for increasing the weight of evidence from senolytics. To determine the effect of senolytics on cells with different telomere lengths, a new method is needed to isolate viable, non-labelled cells by telomere length from a cell population, and then to study the effect of senolytics on cells of different telomere lengths. The Riga Technical University develops a microfluidic biochip on which viable, non-labelled cells can be isolated by telomere length by dielectrophoresis (microscopically) under the control of artificial intelligence. This paper is developed with the support of the European Regional Development Fund Operational Programme “Growth and Employment”, specific support goal 1.1.1 “Increase the research and innovation capacity of Latvian scientific institutions and the ability to attract external funding by investing in human resources and infrastructure”, measure 1.1.1.2 “Postdoctoral research support" (No. 1.1.1.2/VIAA/3/19/450).