It is currently known that there are hundreds of core factors with anti-aging and skin-beautifying effects in stem cell exosomes, such as cytokines FGF, EGF, etc., cell signaling proteins Wnt4, Wnt11, etc., anti-aging MicroRNAs: miRNA-124a, miRNA125b, miRNA21, miRNA-146a, miRNA-181c, miRNA-let-7b, etc. Stem cell exosomes are the latest black technology both in the medical field and in the beauty industry.