Amazon Protein Advance Formula After Treatment Shampoo is a professional-grade hair cleanser designed to gently cleanse while maintaining the integrity of treated or damaged hair, helping restore smoothness, strength, and manageability. This sulphate-free formula works to protect hair from dryness and breakage while supporting post-treatment care, making it ideal for maintaining softness and shine without stripping natural moisture. Enriched with conditioning agents and proteins, it helps improve hair texture and overall resilience, leaving hair refreshed, nourished, and easier to style with regular use.