The regenerating serum System Professional for fine and damaged hair, 100 ml format, an advanced treatment designed to strengthen and revitalize fragile hair fibre. Thanks to X4L Liquid Hair technology, enriched with innovative ingredients, it intensely repairs split ends, improves elasticity and gives a silky texture without weighing it down. Its lightweight formula penetrates quickly, offering daily protection against external aggressions such as heat and pollution. Ideal for those who want visibly stronger, brighter and transformed hair from root to tip. This serum represents the perfect solution for maintaining healthy, disciplined hair with natural splendor, enhancing all types of fine hair with professional results.