Most straightening products use harsh chemicals, which can leave the hair dry and lifeless. Less caustic products fail to straighten the hair permanently. Rusk Thermal Str8 is a unique approach, which provides internal conditioning and beneficial protection through its combination of Vitamin B5, Soy Proteins, Wheat Proteins and Keratin Amino Acids. The Rusk Thermal Str8 system is then used with the Rusk Ceramic Str8 Iron, resulting in permanently straightened hair that is smooth, shiny and healthy.

Rusk Thermal Str8 provides straight, shiny, healthy hair . Designed to be used with the Rusk Ceramic Str8 iron, this system uses Vitamin B5, Soy Protein and Keratin Amino Acids to prepare the hair for superior, permanent straightening results. This breakthrough formula contains Thermplex: a unique combination of ingredients, which, when heat-activated, will "Internally Restructure" hair from the inside out. This system straightens and conditions the hair, imparting a new, smoother texture.

Rusk Thermal Str8 Internal Restructuring System is available in 2 formulas:

• Normal / Tinted formula: For use on healthy, virgin hair or hair previously colored with semi or demi permanent hair colors, processed with less than 20 volume peroxide.
• Virgin / Resistant formula: For use on coarse, resistant virgin hair, or resistant hair that has been color-treated using semi permanent, demi permanent or no-lift permanent hair color.