The Refreshing Shampoo for All Hair Types 4 by Olaplex, 250 ml, is a professional treatment designed to maintain the strength and vitality of the hair fiber. Thanks to the innovative Bond Maintenance formula, it repairs and protects the internal bonds of the hair, reducing breakage and providing lasting softness and shine. Suitable for all hair types, it gently cleanses without being aggressive, ensuring a una healthy, strengthened, and visibly shinier mane day after day. Essential for a complete and regenerating una care.