1 citations
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October 2023 in “Skin Research and Technology” Hair sunscreens were less effective than expected, especially for dark hair.
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November 2024 in “JAAD reviews.” Certain drugs can change hair color, either lightening or darkening it.
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September 2025 in “Голова и шея.” Solutions without sodium ions best preserve hair follicle transplants.
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January 2009 in “Journal of S C C J” Changing disulfide bonds in human hair affects its melting behavior and thermal stability.
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June 2021 in “Clinical neuropsychopharmacology and therapeutics” Valproic acid can cause hair color change in older men.
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March 1997 in “International Journal of Dermatology” Selenium sulfide in anti-dandruff shampoos can turn hair green.
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April 2013 in “Pakistan Journal of Biological Sciences” Hair coloring, waving, and ironing cause more hair damage than not using these treatments.
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April 2011 in “Journal of Microscopy” The modified osmium method improves hair cortex staining for better visualization.
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December 2001 in “Lasers in Surgery and Medicine” Permanent hair removal is hard, but using longer laser pulses at lower power might improve results.
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February 2026 in “Cureus” The Q-switched ruby laser effectively lightened eyebrow tattoos but may reduce eyebrow hair density.
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December 2021 in “2021 International Conference on Electronic Information Technology and Smart Agriculture (ICEITSA)” Chemical dyes damage hair's internal structure more than perming, as shown by a special imaging technique.
1 citations
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January 2013 in “PubMed” Permanent wave treatment with thioglycolic acid changes hair structure by altering disulfide bonds.
January 2018 in “Springer eBooks” Lasers are FDA-approved for permanent hair reduction, not removal, and more research is needed to improve treatments.
November 2024 in “Biophysical Chemistry” Hair structure changes immediately during perm treatment, with initial damage partially restored later.
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March 2005 in “Aesthetic surgery journal” The long-pulse alexandrite laser effectively removes hair permanently.
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March 2000 in “PubMed” The study found that using polyamide synthetic hair for implants is generally safe and gives good results with proper medical follow-up.
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January 2013 in “Annals of Dermatology” Korean women dye their gray hair more than men, and it doesn't cause scalp diseases.
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December 1941 in “Experimental biology and medicine” Eating phenylthiocarbamide made all the rats' hair go gray, but some returned to their original color after stopping.