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GHK is a naturally-occurring tripeptide (sequence: Gly-His-Lys) present in human plasma at low physiological concentrations

Phase 2 dose-finding trial (Lancet 2021) showed clear dose-response from 0.3 mg up to 4.5 mg/week, but 2.4 mg is the dose Novo Nordisk advanced into Phase 3 and is the most commonly self-reported community ceiling

Diab Care 42 , 507513 (2019)

Candidacy is a clinical decision made with a provider, not a checkbox

Studies comparing PRP to corticosteroids found: A randomized trial of 192 patients with knee OA found that PRP provided superior long-term pain relief compared to corticosteroids , with no evidence of cartilage degradation (PMID: 33239706)