Dispersing gas in a liquid provides a mixture of saturated, supersaturated or hypersaturated solution to provide a suspension of bubbles containing gas therein into which animal tissue is immersed for health or wellness treatment. A two-phase mixture is provided with dissolved gas as a suspension of microbubbles. Methods for making, maintaining, and using the two-phase mixture are provided. Gas molecules may be introduced into a liquid at high velocity under elevated pressure to form a supersaturated solution that retains the gas, preferably oxygen, in solution when exposed to ambient conditions.
