There’s no one answer to this question. Since everyone’s body reacts differently, it’s difficult to pinpoint an exact number or size. However, if you’re using human growth hormones under optimal conditions, you could gain as much as 20% to 30% lean muscle within a four to five month period. Generally people use between 1 IU to 4 IU per day.
Most people using HGH injections tend to see results within just 3.5 to 4 months of regular use. There are various factors that play a role in how much mass you can gain or fat loss. For instance, the workouts you’re performing, what you’re consuming day-to-day, your age, how many hours of quality sleep you get, your lifestyle and whether you’ve used injectable HGH in the past will determine your results.
If you’re in good shape, work out between three and five times weekly, sleep seven or more hours per night and eat a diet rich in protein, you could get the results mentioned above. With HGH, you can push past this limit.