Hello and welcome
Sorry it has taken so long to give you an answer, I was hoping one of the ladies with experience with these drugs would.
Firstly, would we be able to get a bit more information from you, like age, how long you have been training, weight and body fat if you would be so kind.
Also you goals as to why you would like to put on a lot of mass, are you competing in a sport?
This is what we know about GH. It works on muscle and bone, and it has direct and indirect actions
These are the indirect actions of GH:
Growth acts on the liver to stimulate the synthesis and secretion of IGF-1, and IGF-1 in turn stimulates bone growth.
IGF-1 triggers fat breakdown in fat cells and protein synthesis in muscle cells (also remember there is smooth muscle through your digestive tract and lines your arteries, and cardiac muscle in your heart).
There are also GH receptors on your bone, which stimulates growth.
Directly, GH is refered to as diabetogenic, as the actions of GH are in opposition to those of insulin.
Insulin is considered an anabolic, and that is why people try to trigger it naturally or unnaturally post work out with either simple sugars or insulin.
It is a hormone of storage which will put fat (in the form of triglycerides) into fat, carbohydrates (in the form of glycogen) into your liver and muscle, and protein (in the form of amino acids) into your muscles.
Without insulin, protein catabolism (breakdown) is enhanced and amino acid uptake into the mmuscle is inhibited, as is the translation of the mRNA molecules that would mmake muscle protein.
Growth wants to break down fat in fat cells, and burn the glycogen in the muscle.
Taking IGF-1 post workout, a lot of people take insulin to counter balance the effects of GH, IGF-1 may have a similar effect, but not exactly the same effect as insulin.
IGF-1 is insulin-like growth factor, however it does not use the same receptors as insulin.
Both insulin and IGF-1 have a similar structure, but whereas insulin is anabolic, IGF-1 are mitogenic (causing cells to divide), trophic (directs growth based on nutritional levels) and act as survival factors for a number of cell types.
There is a thread in the AAS forum right now with quite a bit of info about GH, insulin and IGF-1, I would suggest you look at it.
I will see if I can find someone who does know about doses and parameters for taking these substances.