“…Ten studies evaluated the effect of MSC-CM on hair growth at the preclinical level (Park et al, 2010;Won et al, 2010Won et al, , 2015Dong et al, 2014;Shim, 2015;Choi et al, 2019;Gunawardena et al, 2019a;Ou et al, 2020;Xiao et al, 2020; Table 7). MSCs were isolated mainly from human hair follicles (Won et al, 2010;Won et al, 2015;Gunawardena et al, 2019a;Ou et al, 2020) (40%, 4/10) and human adipose tissue (Park et al, 2010;Choi et al, 2019;Xiao et al, 2020) (30%, 3/10). Other tissues used were human amniotic fluid , human deciduous teeth (Gunawardena et al, 2019a), human dermal cells (Shim, 2015), and murine bone marrow (Dong et al, 2014).…”