125 citations
,
February 1971 in “Biochemistry” Specific cross-linkages help make hair proteins stable and strong.
December 2025 in “Universal library of medical and health sciences.” Amino acids like arginine and cysteine protect hair during chemical treatments, keeping it strong and less brittle.
October 2012 in “한국미용학회지” For best curls and hair health, use keratin and ceramide after rinsing, or skip rinsing for stable curls.
October 2021 in “Authorea (Authorea)” New hair perming method using tyrosine is gentler and can be done with a blow-dryer.
December 2023 in “Journal of molecular structure” Hair treatments and dehydration affect hair's lipid and protein behavior, influencing its flexibility and appearance.
June 2026 in “Zenodo (CERN European Organization for Nuclear Research)” Herbal hair conditioners are a safe and effective alternative to synthetic ones for healthy, manageable hair.
June 2026 in “Zenodo (CERN European Organization for Nuclear Research)” Herbal hair conditioners are a safe and effective alternative to synthetic ones for healthy, manageable hair.
March 2005 in “International Journal of Cosmetic Science” A new method helps understand hair shine and various products improve hair care.
20 citations
,
December 2012 in “Journal of molecular structure” The study found that thioglycolic acid breaks down hair bonds more consistently than l-cysteine, which is less damaging to hair.
9 citations
,
January 1981 Nucleophilic reagents break down hair keratin, forming more lanthionine and lysinoalanine than in wool.
4 citations
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October 2017 in “International Journal of Applied Pharmaceutics” Licorice extract hair tonics are effective and safe for hair growth, except for mild eye irritation at the lowest concentration.
Perms can damage hair and scalp, so proper assessment and care are essential.
5 citations
,
January 1990 in “Journal of Society of Cosmetic Chemists of Japan” Permanent wave lotion can extract proteins from hair, especially when pH is higher, and repeated treatments or bleaching can damage hair.
January 2024 in “Indian Journal of Pharmaceutical Sciences” Relaxing certain muscles might straighten curly hair.
29 citations
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August 2005 in “Biopolymers” L-cysteine slows down the breaking of bonds in hair due to electrostatic interactions.
6 citations
,
March 1999 in “Journal of pediatric health care” The document emphasizes the need for primary care providers to understand and care for African American children's hair and skin to boost their self-esteem.
Thermal straightening can damage ethnic hair and may pose health risks.
Curly hair may be caused by a muscle contraction, and muscle relaxants might help treat it.
4 citations
,
June 2022 in “Journal of cleaner production” New eco-friendly method strengthens and sets hair using light and causes less damage.
1 citations
,
March 2010 in “International Journal of Cosmetic Science” The Aqualon SLT device measures hair stiffness and slipperiness to evaluate hair treatments.
1 citations
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June 2019 in “International Journal of Applied Pharmaceutics” Nanostructured lipid carriers can effectively repair hair split-ends for over 3 days.
January 2024 in “Indian Journal of Pharmaceutical Sciences” Relaxing the Arrector Pili Muscle might make curly hair straighter.
43 citations
,
September 2001 in “Scanning” Hair treatments like bleaching increase friction by exposing tiny pores on the hair surface.
November 2016 in “The Molecular Biology Society of Japan”
7 citations
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May 2021 in “Applied sciences” Proteins like BSA and keratin can effectively style hair and protect it, offering eco-friendly alternatives to chemical products.
January 2024 in “World Congress on Medical Physics and Biomedical Engineering, September 7 - 12, 2009, Munich, Germany” Polisorbate 20 is not suitable for curl creams due to instability.
25 citations
,
May 2019 in “Heliyon” Hair treatments cause significant structural changes, especially with excessive heat, regardless of ethnicity.
3 citations
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January 2009 in “Sen'i Gakkaishi” Using both TGA and DTDG in hair straightening reduces hair damage compared to using TGA alone.
January 2021 in “Journal of clinical & experimental dermatology research” LustrivaTM improves hair thickness and reduces facial wrinkles safely.
7 citations
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August 2018 in “Journal of cosmetic dermatology” Chemical hair straightening improves smoothness and shine but may cause side effects, suggesting a need for safer methods.