Joico K-PAK Reconstructor Deep-Penetrating Treatment is an award-winning intensive repair formula that transforms severely damaged hair in just five minutes. Infused with Joico?s exclusive Bio-Advanced Peptide Complex and keratin technology, it penetrates deep into the hair shaft to rebuild, strengthen, and restore elasticity from within. This powerful treatment replenishes essential proteins and amino acids to repair breakage caused by heat styling, chemical treatments, and environmental stress. Hair emerges visibly healthier, softer, and more resilient with renewed shine and flexibility. Ideal for all hair types in need of deep repair and long-term protection against future damage.