A method that inhibits infection during wound healing by topical application of a single composition, which contacts a wound for a period of time to initiate wound healing. The single composition may include a mixture of all or some of the amino acids including: histidine monohydrochloride monohydrate; isoleucine; leucine; lysine acetate; methionine; phenylalanine; threonine; tryptophan; valine; alanine; arginine acetate; aspartic acid; glutamine; glycine; proline; serine; and tyrosine, which may provide aqueous mixtures of a range of osmolarities or a powdered mixture of amino acids. The single composition may also include any of a carbohydrate, a mixture of fatty acids, vitamins, and mineral nutrients, and another mixture of amino acid derivatives and preservatives. The number of moles of the carbohydrate is less than and proportional to a sum of the number of moles of any mixture of amino acids in the single composition.