The BLACK Cristalli Trasparenti Serum is designed to hydrate and rejuvenate hair. Enriched with a high concentration of flaxseed oil, it provides a smoothing effect against environmental factors and frequent treatments like perming or coloring. Key Features: • Deep Hydration: Nourishes hair deeply, leaving it soft and shiny. • Effective Protection: Shields hair from harmful environmental effects and repeated chemical treatments. • Enhanced Appearance: Boosts hair shine and gives it a healthy, vibrant look. How to Use: 1. Apply a small amount of serum to the palm of your hand. 2. Distribute evenly through damp or dry hair, focusing on the ends. 3. Do not rinse; allow the product to be fully absorbed.