Peptides occur naturally in the body and are present in every living cell. Like proteins, peptides are composed of amino acids and created when two or more amino acids are joined together.
There are 20 different amino acids in the human body and mixing different combinations is what creates the various peptides and proteins in the body. All peptides will have some effect on the cells of the body. Different types of peptides influence different types of cells. Peptide therapies help the body fight certain illnesses and diseases.