René Furterer Tonucia Redensifying Shampoo is a youthful redensifying shampoo specifically formulated for fine and devitalized hair. Thanks to its complex of 100% naturally derived active ingredients with plant-based hyaluronic acid and orange essential oil, it gently cleanses, stimulates scalp microcirculation, hydrates and thickens even the densest hair fiber, thus restoring the hair.