Many experts feel that supplementation with growth hormones offers exciting possibilities to adult bodybuilders, especially those aged over thirty. They should not be taken by anyone aged under twenty. In the past growth hormone was available only in injectable form but recent years have seen the development of HGH precursors and more advanced delivery systems. The most popular means of taking growth hormone boosters today include sub-lingual spray, homeopathic pills and capsules containing HGH secretagogues. That's all very well, but do these supplements have any place in bodybuilding? To answer this, we'll need to look first at what growth hormones actually do. Human Growth Hormone is responsible for the regulation of insulin, protein synthesis, transportation of amino acids across cell membranes and fat metabolism. Clearly, these are processes that are of relevance to serious bodybuilders. Users have reported higher energy levels, enhanced libido and greater cardiac output. In addition, superior immune function, lowering of blood pressure and improved cholesterol levels have been documented. Add in other potential benefits like improved sleep, shorter recovery times, quicker regeneration of damaged muscles and you can begin to understand why some experts are excited by the possibilities offered to bodybuilders. No adverse side effects have been reported when used as directed but persons aged under twenty should not use growth hormone boosters without consulting a health care professional familiar with HGH therapy. You can find out more about these and other bodybuilding supplements by visiting the site listed below. Richard Mitchell is the creator of the bodybuildingadvisor.com website that provides guidance and information to athletes at all levels of bodybuilding experience. Go to Growth Hormones to learn more about the issues covered in this article.