3rd. method: Permanent Hair straightening
CHI hair straightening iron
The CHI transformation method use a fluid silk (hydrolisation) to permanently straighten the hair. The silk will permanently bond to the hair in an electro-static process.
Then the CHI iron produces negative ions (due to the ceramic material) that pushes the silk molecules permanently deep inside the hair's cortex. Unlike a normal hair blower the ceramic material provides a moist heat that ensures the hair to dry out.
Advantages: Your hair will be extremely smooth and gleamy (about 6-12 months). Your hair is not damaged strongly.
Disadvantages: Depending on the lenght and thickness of your hair the multistep process can take from four to six hours or longer. It can only be done by a hair stylist and it is an expensive treatment.
The Yuko hair straightening system - Thermal hair straightening
Hollywood Stars like Brooke Shields prefer to use the Japanese Yuko hair straightening system. In 1996 director Mrs. Yuko Yamashita created the system and introduced it in America. If desired the process can be reversed to obtain curly hair again. Yuko systems are also used by salon professionals like Toni & Guy.
This newly developed straightening system uses heat to restructure the hair's proteine bond. Before passing it through thermal irons the hair is treated with proteines, amino acids, moisturizers and protective products. It is a relatively new technical service offered at hair salons around the country.
Simular methods like Straight Therapy - some hair stylists also use a perming product (like WELLA Perform) that reverses the process of perming in order to straighten the hair. This perming method will only last a couple of days.
Hair relaxers are also chemical hair straightening products that mainly are used to straighten African natural curly hair. Those products do not work if your hair is permed. Why? Perming products and hair relaxers are two completely different chemical treatments which can lead to breakage of the hair.