20% more Bonus size vs. Nexxus 13.5oz size. Nature. Science. Salon. Keraphix. ProteinFusion with keratin protein and black rice. For severely damaged hair. Keraphix shampoo for severely damaged hair. Repair Level: 5. At Nexxus, we use advanced scientific methods to identify the protein needs of hair and create highly effective custom formulas. Salon-crafted with our exclusive ProteinFusion blend with Keratin Protein and Black Rice, Keraphix Shampoo acts as the first step of the treatment process, gently cleansing your severely damaged hair, priming it for continued treatment. nexxus.com. To find out more about the Nexxus New York go to nexxus.com.