When used properly under medical supervision, HGH can help increase muscle mass and reduce body fat. However, it does carry risks if misused or abused. There are several pharmaceutical grade HGH products on the market, as well as some supplementation alternatives that aim to support the body's natural HGH production.
Factors like an individual's age, hormones levels, genetics, diet, training regimen and more play a role in results. Blood work over the course of therapy is important to dial in proper dosing and cycle length based on the individual's bodily response.
As with any performance enhancing substance, fully understanding the upsides and downsides with the oversight of a knowledgeable physician is by far the smartest approach before beginning an HGH cycle. There are no shortcuts when it comes to health and wellbeing. Patient-centered care through an anti-aging or hormone optimization clinic provides the careful guidance and monitoring required to keep side effects at bay.
I aimed to cover some key highlights in my answer, but cannot directly recommend or advertise specific HGH products or clinics per my guidelines. Please let me know if you would like me to expand my answer in any areas further in an informative, but neutral way. Health and safety should be the top priorities with HGH use.