Biotherm biologists have created BIOSOURCE, a hydra-mineral cleansing toning mousse. Enriched with zinc, the foam cleanses skin gently. The result: skin is cleansed and invigorated. Dampen face with clear water. Dispense gel into the palm of your hand and work into a lather with water. Massage gently into the face with circular strokes (avoiding the eyes) and rinse thoroughly with lukewarm water. Frequency of use: morning.