disorders such as psoriasis, atopic eczema, epidermolytic hy-perkeratosis etc. In this thesis, I deal with substances that influ-ence the expression of these biomarkers and can be used in thetreatment of the skin disorders where the differentiation is alte-red. One of these substances is kinetin, a phytohormone fromthe cytokinine family. I tested whether some other cytokinines
to look at later