As we age, our growth hormone production naturally declines. HGH is critical when you are a child and helps us to grow tall and feel strong. As a child we also have beautiful hair and our nails constantly need to be trimmed. However, when you are an adult, your body naturally declines or stops producing as much HGH. Without HGH, we experience brittle hair and dry skin, loss of muscle mass, lethargy, poor cognitive function, and slower recovery from injuries, just to name a few.