Evaluation of Cysteic Acid in Bleached Hair Using Infrared Spectroscopy

Suzuta, Kazuyuki; Watanabe, Kosuke; Maeda, Takaaki; Ito, Len

doi:10.2115/fiberst.2016-0004

Cited by 8 publications

(6 citation statements)

References 20 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…IR spectroscopy was performed to track the possible degradation of the amino acid cysteine. The resulting spectra were checked regarding the presence of the peaks associated with cystic acid (1040 cm −1 ) and cysteine monoxide (1071 cm −1 ) and cysteine dioxide (1121 cm −1 ), which were the main products of disulfide bond degradation after oxidation 1,3 . Each of these products exhibited significant absorption peaks in the IR region.…”

Section: Resultsmentioning

confidence: 99%

“…In Asian, African, and brown Caucasian people, the major amino acid in creatine backbone is cysteine (92.5%) 1,2 . This amino acid is responsible for the formation of disulfide bonds in the hair 3 . Hair styling and volumizing effects of some preparations are due to the negative charge of the hair protein 4 .…”

Section: Introductionmentioning

confidence: 99%

“…Increased cystic acid content is a major cause of hair damage and changes the structural and appearance characteristics of hair. The longer the hair is in contact with the oxidant (hydrogen peroxide), the greater the amount of cystic acid is produced and the greater the damage is to the hair 3 . Today, various cosmetic procedures on the hair are being utilized worldwide, which causes damage to the hair 5 .…”

Section: Introductionmentioning

confidence: 99%

“…1,2 This amino acid is responsible for the formation of disulfide bonds in the hair. 3 Hair styling and volumizing effects of some preparations are due to the negative charge of the hair protein. 4 Hair bleaching with oxidizing agents, which are widely used in cosmetics, breaks down the disulfide bonds in the protein backbone and converts cysteine, into cystic acid.…”

Section: Introductionmentioning

confidence: 99%

“…The longer the hair is in contact with the oxidant (hydrogen peroxide), the greater the amount of cystic acid is produced and the greater the damage is to the hair. 3 Today, various cosmetic procedures on the hair are being utilized worldwide, which causes damage to the hair. 5 There are many ways to reduce these injuries, one of which is herbal remedies.…”

Section: Introductionmentioning

confidence: 99%

See 4 more Smart Citations

Argan oil as a pretreatment of human hair before exposure to oxidative damage: Attenuated total reflectance and protein loss studies

Sharifi

Hamedeyazdan

Shokri

et al. 2022

J of Cosmetic Dermatology

View full text Add to dashboard Cite

Introduction:In recent years, argan oil has gained increasing interest in hair care products. In this study, attenuated total reflectance technique was utilized as a fast method and the results were compared to protein loss measurements in order to show the preventive effect of argan oil pre-treatment on excised human hair after oxidative hair damage.Methods: Hair tresses were divided into three groups: in group-1; they were damaged using oxidant agent solely, in group-2 and 3; hair were pre-treated with argan oil before undergoing the oxidative damage. In group-2, the oil was removed by physical cleaning but in group-3 the oil was removed with a washing procedure. ATR (attenuated total reflectance) spectrum was recorded for different samples. Quantitative studies of protein loss in hair samples were performed by Lowry method. The antioxidant properties of argan oil were also measured in vitro using 2, 2-diphenyl-1-picrylhydrazyl (DPPH) protocol, which determined the ability of the oil to scavenge the DPPH free radicals. Results:The amount of protein loss with oil pre-treated groups was reduced significantly. The ATR spectrum showed oil deposition on hair even after washing. Four distinctive ATR peaks were changed during oxidation. The changes in peak height values were linear. The antioxidant property measured with DPPH method led to a IC50 value of 59 µg/ml. Conclusion:Argan oil pre-treatment was effective in protecting hair against oxidative damage. ATR outcomes were in accordance with protein loss results. In this study, the ATR testing method as a fast technique was used efficiently in quantification of hair damage.

show abstract

Section: Resultsmentioning

confidence: 99%