A formulation and method for administration of at least one therapeutic mammalian protein to a mammal or a protein selected from the group, and for enhancing the absorption, distribution and release of the at least one therapeutic mammalian protein in or on the mammal, comprising at least one therapeutic mammalian protein in a micro-emulsion comprising a dispersion of vesicles or microsponges of a fatty acid based component in an aqueous or other pharmacologically acceptable carrier in which nitrous oxide is dissolved, the fatty acid based component comprising at least one long chain fatty acid based substance selected from the group consisting of free fatty acids and derivatives of free fatty acids.
