Capric acid is a saturated fatty acid with an unpleasant smell resembling goats. It is used in organic synthesis, the manufacture of perfume, medicine, lubrication, grease, rubber and dye, plastics, greases and lubricants, food additives and pharmaceuticals. Capric acid is found in human breast milk - of the saturated fatty acids made in the mammary gland, up to 18 percent can be the antimicrobial fatty acids lauric acid and capric acid. These antimicrobial fatty acids give the infant protection against viruses such as HIV and herpes, bacteria such as chlamydia and heliocobacter, and protozoa such a giardia lamblia. Capric acid may be a useful vaccine additive that increases the immunogenicity of nasally administered vaccines and permits less antigen to be used with each immunization.