: 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.

: You can purchase GF-9 at GNC, The Vitamin Shoppe, and Lucky Vitamin.

: 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.

: Excessive HGH levels, even if naturally stimulated, can lead to side effects such as fluid retention and elevated cholesterol.

: The formula is composed of a proprietary blend of amino acids.