PRP (platelet-rich plasma — scalp/face)
Skin/Hair · Autologous growth factor concentrate
Tier B
What this is
Cegarra-Navarro 2020 meta-analysis in AGA positive for hair density. Wide protocol variation (single vs double spin, activation method, injection depth, session count) makes cross-study comparison fraught. Kardashian-tier 'vampire facial' marketing inflated consumer expectations. Ancillary rather than replacement for minoxidil/finasteride in AGA.
Mechanism
Autologous centrifuged platelet fraction (3-5x baseline platelet count) injected; delivers PDGF, VEGF, TGF-β, EGF, IGF-1 locally; promotes follicle stimulation and collagen synthesis
Dose & route
3-4 sessions at 1-month intervals, then maintenance every 3-6 months; $500-1500 per session
Citations
- https://pubmed.ncbi.nlm.nih.gov/31981351/
- https://pubmed.ncbi.nlm.nih.gov/30198588/
- https://pmc.ncbi.nlm.nih.gov/articles/PMC7828931/
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This is an independent synthesis of published research by a non-clinician. Scores are opinions supported by citations, not prescriptions. See the full disclaimer and methodology for how this score was produced and what it does and doesn't mean.