Provided herein are a biocompatible gels, such as an oral gel composition and a topical gel composition. Generally, the oral gel composition may comprise a formulation in ozonized water of a cross-linked polyacrylate polymer and a preservative and sodium hydroxide, acetic acid, and glycerol to polymerize the polyacrylate. Optionally, the oral gel composition may comprise a sweetener and/or a flavoring agent. The topical gel composition is a similar formulation in ozonized water with a cross-linked polyacrylate polymer and a preservative and sodium hydroxide, acetic acid, and hydrogen peroxide to polymerize the polyacrylate. Further provided are methods of using the gel compositions to reduce dental caries and to treat a skin injury.