Human growth hormone was originally obtained from cadaver pituitary glands and was used to treat some forms of dwarfism. Human growth hormone is now synthesized by using recombinant DNA technology.
Human growth hormone is a protein and like the protein insulin can not be taken in a pill form. Protein will be digested by GI tract. Human growth hormone like insulin must be given by subcutaneous injection
HGH has anabolic effects... If you have too much of the hormone (caused by a pituitary tumor) you will develop acromegaly like the wrestler Andre the Giant. You will have a shortened live span and physical deformities. Andre was so strong that he once flipped a car over filled with guys that were teasing him
If you have too much growth hormone before your growth plates close in late puberty, you will also develop gigantism....
If you abuse growth hormone you can develop some of the features of an acromegalic.
What is being sold to you is not growth hormone (needs to be given by shot and costs thousands of dollars a year) but growth hormone releaser...
The Amino acid arginine, if given intravenously, will cause growth hormone to be released by the pituitary gland. Arginine is used in pituitary testing by endocrinologists. Arginine will not release growth hormone when given by mouth. If it did work orally, why would physicians go through all the hassle of giving it IV.
All I can say is that mainstream medicine does not believe that oral growth hormone releasing agents work. If they did, there definitely would be a prescription form available. What pharmaceutical company would give up the opportunity to make more money?
Supplement manufactures claim they work in pill form. Supplement manufactures do not need to under go strict testing that is required of pharmaceutical companies.