Final answer:
Japanese thermal straightening, or thermal reconditioning, is indeed true as it uses a thio relaxer combined with flat ironing to break and restructure the hair's bonds, resulting in straightened hair.
Step-by-step explanation:
The statement about Japanese thermal straightening is true. This process, also known as "thermal reconditioning" or "Japanese hair straightening," is a method of hair straightening that combines the use of a thio-based chemical relaxer with flat ironing. During the process, the chemical relaxer breaks the disulfide bonds in the hair's keratin structure, which is then followed by the application of heat with a flat iron to restructure and straighten the hair. This leads to permanently straight hair until new hair grows out.