The BLACK Keratin Protein Shampoo is specifically designed to nourish and restore vitality to brittle and damaged hair. It deeply regenerates hair fibers, leaving hair healthier, shinier, and fuller. Its salt-free formula enhances the effectiveness of keratin in rebuilding hair structure. Key Features: • Deep Nourishment: Revitalizes brittle and damaged hair, restoring its health. • Fiber Reconstruction: Rebuilds hair fibers with the power of keratin. • Salt-Free Formula: Protects hair while ensuring maximum benefits from keratin treatments. How to Use: 1. Apply an appropriate amount of shampoo to wet hair. 2. Gently massage into the scalp until a rich lather forms. 3. Leave on for a few minutes to allow the active ingredients to work. 4. Rinse thoroughly with lukewarm water.