Permanent straightening, also known as a relaxer, is a straightening method that affects the structure of the hair permanently through a chemical treatment. The chemicals used in permanent straightening solutions cause permanent change to a person’s hair follicles, however, new hair growth is not affected by this procedure. The science behind hair straightening is as […]
Hair straightening involves either: a break in the chemical bond that maintains the structure of keratin in its original form; or a more permanent solution using chemicals The temporary solution involving rapid drying of the hair with an application of a hot iron to shape the strand only lasts until the hair is wet again. […]
Hair consists primarily of the protein keratin, a polymer with a high concentration of the amino acids glycine, glutamic acid and cysteine. During the formation of the keratin fibre, the sulfhydryl functions of the cysteine residues oxidise to create disulphide bonds that give hairs their structure (Acton, 2013). The natural look of hair can be […]
