It depends on the type of Aqua Fresh toothpaste (there are several variations). But basically it contains the same ingredients as other commons toothpastes, although different in quantities.

The basic toothpaste ingredients are Sodium saccharin, Sorbitol, Sodium lauryl sulfate, Hydrated silica, Sodium benzoate, Calcium carrageenan, Carboxymethylcellulose sodium, Sodium monofluorophosphate, PEG-8 (polyethylene glycol), Titanium dioxide plus some flavor.