Beyond PRP: Recognizing the Evolving Generations of Platelet Concentrates in Androgenetic Alopecia Treatment—A Letter in Response to Zhong Et Al

June 2026 in “ Journal of Cosmetic Dermatology ”

Luo Ruiyu, Changjiang Zhao, Yufei Li

platelet-rich plasma androgenetic alopecia platelet-rich fibrin concentrated growth factor CGF-purified fraction extracellular vesicles exosomes hair follicle stem cell pathways PRP AGA PRF CGF CGF-PF

From the encyclopedia

Platelet-Rich Plasma →

growth factors taken from your blood and injected into your scalp to stimulate hair

Exosomes →

Microscopic delivery system that sends growth-promoting signals to hair follicles

Studysummary CGF-PF may improve hair loss treatment by targeting hair follicle stem cells more effectively.

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research Research Progress on Platelet-Rich Plasma (PRP) in the Treatment of Androgenetic Alopecia

March 2026 in “Journal of Cosmetic Dermatology”

This review discusses platelet-rich plasma therapy for androgenic alopecia and reports no clinical results; the authors emphasize the need for standardized protocols and large-scale studies to confirm its long-term efficacy.

research Dermal Exosomes Containing miR-218-5p Promote Hair Regeneration by Regulating β-Catenin Signaling

65 citations , July 2020 in “Science Advances”

Dermal exosomes with miR-218-5p boost hair growth by controlling β-catenin signaling.