Hygetropin Growth Hormone is an analog of endogenous growth hormone (recombinant, that is produced by our own body) with a formula identical to human growth hormone. It was prepared in the laboratory, by means of genetic engineering. This process is very expensive and complicated, as the growth hormone is synthesized by specific E. coli bacteria, but its chain contains an additional methionine residue which is to be cleaved to obtain the desired amino acid sequence. That is why Hygetropin drug has a high cost. The main reason for high prices in the manufacture of this drug lies in its cleaning.