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Platelets are important components of the blood system. There are many kinds of concentrated platelets and their derivatives, among which platelet-rich plasma (PRP ), growth factors (GFs) and platelet-rich fibrin (PRF) have been widely used in clinical practice. Lyophilized platelets (Lyo-P) or freeze-dried platelets (FDP) are prepared from concentrated platelets by freeze-drying and have the advantages of long storage time at room temperature, light weight, convenient transportation, inactivation of pathogens, etc. Lyo-P contain high concentration of GFs, fibrin, white blood cells and various cytokines. In addition to their hemostatic and coagulative functions, Lyo-P and their products are increasingly used in wound healing, tissue repair, cosmetology, reproductive medicine and other fields.