Quaternized Keratin System Resistant Hair Tamer. Ultra Gold is an advance hair keratin treatment formulated to tame rebellious and damaged hair. Ultra Gold is Quaternized ( positively charged) with keratin protein particles that work on repairing the negatively charged damaged hair fibers. Ultra Gold is specially designed to be used on colored hair for deep intense color that is neutralized with the treatment. The treatment allows the keratin to act as a color protection barrier, it intensifies and amplifies current hair color while healing any color damage such as örange hair that occurs during coloring, leaving the hair looking silky smooth with a vibrant color."