GF-9 is widely available at major health and wellness retailers and directly from the manufacturer.
: While marketed to athletes, users should verify its status with relevant anti-doping agencies like the World Anti-Doping Agency (WADA) if they participate in competitive sports.
: A clinical study cited by the manufacturer found that a specific oral dose of these amino acids could increase mean serum HGH levels by 682% roughly 120 minutes after ingestion.