Andrzej Slominski has a longstanding (>30 years) trajectory of research (skin, cellular and molecular biology, biochemistry, melanin pigmentation, cancer, photobiology and endocrinology) and clinical (dermatopathology and pathology) activities with 328 peer reviewed papers. His recent focus is on neuroendocrinology of the skin, cancer, photobiology, pigment biology, cutaneous steroidogenesis, vitamin D plus novel secosteroids and melatonin. His contribution to the International and Pan-American Pigment Cell and Melanoma communities is exemplified by service as secretary/treasurer (2008-2014) or council member (2007-2018) of the PASPCR, secretary of the International Federation of Societies for Pigment Cell Research (IFPCS) (2011-2014) and past membership (2006-2010) in the Steering Committee of the Society for Melanoma Research (SMR). His academic track record is marked by discoveries of cutaneous expression of classical hypothalamic and pituitary hormones, discoveries of cutaneous serotoninergic and melatoninergic systems, an defining the skin as a neuroendocrine organ. Most important is the discovery of new seco/steroidogenic pathways that includes non-classical activation of vitamin D and discovery of new lumisterogenic pathway.