The “permanent wave service” has gained enough market share to produce a substantial amount of sales in the hair care sector.
After extensive, pain-staking research, BES permanents have developed two important features: a pleasant scent, obtained by using new, precious essences, and the chance to increase application frequency, thanks to the presence of innovative substances that protect and recondition the hair’s structure.
ACTIVE INGREDIENT OF THE PERMANENT WAVE
When you want hair to take on a special form (wave) it needs to undergo a certain amount of twisting which impacts the keratinic fibres. Their chemicalphysical structure must be modified in some manner to allow the hair to take on the new form. However, because of the way they are, they tend to revert back to their original nature.To maintain these results, specific agents need to be used to break up or interrupt these bonds without harming the structure of the hair, and then reconstruct it in a complete, lasting manner.
THE IMPORTANCE OF DISULFIDE BONDS
Since there are a certain percentage of disulfide bonds that can be interrupted or broken apart and then reconstructed with the help of specific reactive agents, these bonds can be worked on in a fairly safe manner so produce a lasting permanent wave.
THE REACTION FUNCTION OF THE PERMANENTS
Permanents use a buffer solution to keep the pH level steady during the process. An undesired variation could cause the reaction underway to slow down or even stop altogether, compromising the final results.The active ingredient essential to a permanent wave is a special thioglycolic acid in the form of salt that reduces the disulfide bonds of the cystine without harming the structure of the hair, so it can be styled the way the hairdresser wants.
THE OXIDIZING ROLE OF THE NEUTRALIZER
To make sure the style lasts, it is necessary to apply a neutralizer that performs an oxidizing reaction to fix the new arrangement of disulfide bonds in the right position, i.e. in a linear fashion, without any overlap, as it is with natural, untreated hair.