GC Tooth Mousse is a delicious tasting crème that contains calcium and phosphate; the major minerals teeth are made from. Because calcium and phosphate are carried in a special milk-derived protein called RECALDENT (CPP-ACP), they are available in a soluble form. This means GC Tooth Mousse® provides extra protection for teeth, buffers dental plaque acid from bacteria in the mouth and also protects teeth from acidic foods and drinks.