K18 Molecular Hair Repair & Damage Protection Duo is an advanced hair care bundle specially designed to cleanse, repair, strengthen, and protect damaged hair while improving softness, elasticity, and manageability. This two-step hair care set combines K18 Molecular Repair Leave-In Hair Mask and K18 Damage Shield pH Protective Shampoo for a complete cleansing and molecular repair routine. Both formulas feature patented K18PEPTIDE™, a biomimetic peptide designed to address hair damage caused by bleaching, colouring, chemical treatments, and heat styling. The pH-optimized shampoo uses gentle cleansing agents to remove dirt, excess oil, and buildup while minimizing cuticle swelling, frizz, and colour fading. Its formula contains Panthenol and Glycerin to support moisture retention and maintain hair softness. The Leave-In Molecular Repair Hair Mask features K18PEPTIDE™, Hydrolyzed Wheat Protein, and Hydrolyzed Wheat Starch to support hair strength, improve elasticity, and restore smoother-looking strands. Its innovative leave-in formula works in just four minutes to repair damage within the hair structure without requiring rinsing. Suitable for all hair types, including chemically treated, colour-treated, and heat-damaged hair, this professional-inspired duo provides gentle cleansing and targeted molecular repair for stronger, healthier-looking hair.