Strengthened and resilient hair thanks to an intensely hydrating maschera | The maschera strengthening KERASILK Specialists Strengthening Mask will help you improve the quality and appearance of fine, weak, or limp hair. It effectively strengthens and fortifies the structure of dry and weakened hair, providing them with intense and long-lasting hydration without weighing them down. Thanks to this hydration, it fills each individual hair fiber from within, leaving it up to 18 times stronger. You will also experience greater resilience and 99% less hair breakage.