The HEART OF GLASS Intense Treatment is the perfect solution for those with blonde hair that is prone to breakage. This treatment contains a powerful Biacidic bond complex and Baobab extract that works together to strengthen the hair fibers, preventing breakage and leaving the hair feeling nourished and revitalized.By leaving the Intense Treatment to act for just 5 minutes, hair can enjoy up to 40% more resistance to breakage. For even more effective results, leaving the treatment to act for up to 10 minutes can increase resistance to breakage by up to 57%. This means that blonde hair can be stronger and healthier than ever before, even after just one use. In addition to its strengthening properties, the HEART OF GLASS Intense Treatment also brightens the hair, leaving it looking and feeling more vibrant. With this treatment, hair is left feeling elastic, nourished, and tamed, making it easier to manage and style. Help to prevent a the hair fibre breakage. Up to +40% of resistance to hair breakage if the Intense treatment is left to act for 5 minutes. *.