HGH, or Human Growth Hormone, is actually a In a natural way happening hormone produced by the pituitary gland. It performs a vital purpose in cell regeneration, growth and retaining healthy human tissue, together with that from the brain and a variety of crucial organs.SITROPIN 33.3MG (100IU) 191aa Somatropin for Injection 10iu/Vial 10 x 10iu Vial