Matrix Total Results Mega Sleek Iron Smoother helps protects against high heat damage and humidity for all day frizz control and smoothness. Protects hair from heat damage up to 230 degrees Celsius. Maximizes performance of thermal tools with lasting style memory. Glycerin is high in humectants, which draw moisture from the surrounding air and hold it in the hair. Apricot Kernel Oil is rich in proteins, as well as oleic and linoleic acids. These two essential fatty acids soften and moisturise the hair and scalp, for softer, more hydrated hair.