The Smoothen S3 Hair Mask by System Professional, in the 400 ml format, an intensive treatment designed for normal to thick hair with a tendency to frizz. Thanks to its innovative formula, it deeply nourishes the hair fiber, giving softness and a long-lasting smooth effect without weighing it down. Regular application improves manageability, reduces frizz and protects hair from humidity, keeping hair manageable and shiny. Ideal for those who want a well-groomed and natural look, this mask also promotes the regeneration and vitality of the hair, giving a feeling of comfort and lightness. A perfect professional treatment for those looking for visible results and disciplined hair every day.