In humans, the amount of growth hormone after age 30 declines about 14% per decade, so that total daily growth hormone production is reduced dramatically with age. In numerical values, we produce on a daily basis about 500 micrograms of growth hormone at age 20, 200 micrograms at age 40, and 25 micrograms at age 80. At age 40 our growth hormone production is only 40% of what we produced at age 20
Therefore depending on your age you may not even be ready to take HGH. When I say not ready I mean that your natural levels may be sufficiently high that there is no need for you to use HGH.
However I started off on 4iu's of GH every second day with 6iu's of insulin 3x per day on GH days. I changed to 4iu's 5 days on 2 days off after a recommendation by someone on this board with the insulin at the same dose. This I feel worked better. I increased the insulin dosage to 10iu's but this was a unnecessary and made me feel sick.