A New Permanent Straightening Process of Human Hair Using the Water Set
January 2014
in “
Sen i Gakkaishi
”
Studysummary This study verified that a new straightening process involving a flat iron, ammonium thioglycolate, and hydrogen peroxide may permanently straighten wavy hair by eliminating disulfide bond distortions.
Our plain-language summary. Not medical advice or a treatment recommendation. Consult a qualified healthcare professional before changing treatment. Full disclaimer
The study proposed a new permanent hair straightening process that involved shampooing, towel drying, flat ironing at 175℃, applying a commercial straightening cream with ammonium thioglycolate, rinsing, and oxidizing with a neutralization cream containing hydrogen peroxide. This method aimed to eliminate the distortion of disulfide bonds in the hair, resulting in a permanent straightening effect. The process was validated by the hair's increased resistance to boiling water, suggesting that the repositioning of the non-keratin protein chain in the cortical cell layer was crucial for maintaining the straightened style.
