Improved formula for even thicker and 2x fuller hair 100% color protection with the new Pro-Color Shield technology For normal, fine, chemically treated or thin-looking hair. A leave-in treatment for normal or thin-looking hair, enriched with antioxidants and botanical ingredients that contribute to invigorate the scalp. Directions: Apply directly onto scalp. Gently massage to help penetrate scalp. Do not rinse. Use every day. May provoke temporary irritation on scalp after use.