Oligopeptide-1 is a recombinant form of the naturally-occurring polypeptide with potential epithelial regenerative and cytoprotective activities. It works as a skin-conditioning agent. It is composed of three amino acids, which are glycine, histidine and lysine. It may be decomposed by enzymes via microorganisms and loses its activity, so it is extremely important to avoid microbial contamination during processing of products containing Oligopeptide-1.