Mirtha de Perales Shampoo with Keratin protects the hair against heat damage. It is ideal for all hair types. Mirtha's Shampoo with Keratin gently cleanses while infusing the hair with keratin from Brazil. Sodium Sulfate free formula prolongs and improves the results of Keratin treatments, hair dyes, and other chemical processes. light lather. Repairs hair, leaving it soft and shiny. 16 Ounces.