When injected into thinning and balding head regions, the growth factors in PRP can encourage thicker, fuller, and healthier hair growth. PRP may increase the proliferation of dermal papilla (hair-generating) cells, the survival, differentiation, and proliferation of follicle cells, and lengthen the hair’s anagen phase.1 PRP has also been shown to increase hair density in patients with androgenic alopecia (baldness).2
Rubina Alves and Ramon Grimalt, “A Review of Platelet-Rich Plasma: History, Biology, Mechanism of Action, and Classification,” Skin Appendage Disorders 4, no. 1 (2018): 18-24, accessed December 12, 2019, https://doi.org/10.1159/000477353.
Bilsev Ince, et. al., “Comparison of the Efficacy of Homologous and Autologous Platelet-Rich Plasma (PRP) for Treating Androgenic Alopecia,” Aesthetic Plastic Surgery 42, no. 1 (2018): 297-303, accessed December 9, 2019, doi: 10.1007/s00266-017-1004-y.