Geranylgeraniol (GG) is an endogenous nutrient in the body that plays important roles in helping support how cells function and communicate. GG can help support the body in many ways including helping to support protein function in the body and promote the production of hormones like testosterone and MK4, a form of vitamin K2. Given the diverse roles that GG can play in the body, supplementing with GG-Gold can help to support healthy cellular activity and overall vitality..