Schwarzkopf Professional’s Goodbye Yellow is a specialized solution to rock the salt and pepper look in men. It is a miracle-worker as it restores the pH balance to 4.5, soothing the scalp and protecting coloured or grey hair from frizz, making it manageable and healthy. GOODBYE YELLOW Neutralizing Bonding Wash is free from Sulfate-based surfactants and gently cleanses the hair.