Gel to strengthen teeth R.O.C.S. Medical Minerals is a source of bio-available calcium compounds, phosphorus and magnesium, strengthening the enamel. Introduced in the gel xylitol increases the remineralizing potential of the complex, as well as inhibits the activity of bacteria that cause tooth decay and gum disease. Due to special additives, forms a stable invisible film on the teeth. It provides a gradual penetration of minerals in the tooth tissue. It allows you to extend the exposure time of the active components.