The Goldwell Kerasilk Reparative Anti-Hair Loss Spray Tonic is formulated to address concerns related to hair thinning and loss. It works to strengthen the hair fibers and stimulate the scalp environment, promoting visibly denser and healthier-looking hair over time. This daily-use tonic is an essential step in a comprehensive hair strengthening routine. Apply directly to the scalp or roots to revitalize dormant follicles and reinforce existing hair against breakage.