Mechanical and Controlled PRP Injections in Patients Affected by Androgenetic Alopecia

January 2018 in “ Journal of Visualized Experiments ”

Pietro Gentile, Simone Garcovich, Maria Giovanna Scioli, Alessandra Bielli, Augusto Orlandi, Valerio Cervelli

platelet-rich plasma PRP androgenetic alopecia medical injector gun autologous PRP

TLDR PRP injections significantly increased hair count and density with less pain.

The study described the use of mechanical and controlled platelet-rich plasma (PRP) injections in the scalps of 23 patients with androgenetic alopecia. The procedure involved preparing autologous not-activated PRP from 55 mL of blood, which was then injected at a depth of 5 mm using a medical injector gun. Each session involved injecting 0.2 mL of PRP per cm² of the scalp. The results indicated a significant increase in hair count and density after three sessions, with reduced pain compared to manual injection methods. No local or systemic anesthesia was used.

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