122 citations
,
October 2013 in “PEDIATRICS” Maternal stress during pregnancy affects a child's stress levels.
71 citations
,
December 1987 in “Journal of animal science/Journal of animal science ... and ASAS reference compendium” Hair analysis is not a precise way to measure livestock's mineral status but can help when used with other methods.
33 citations
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November 2007 in “JAT. Journal of applied toxicology/Journal of applied toxicology” Human scalp hair on mice can effectively monitor mercury exposure.
31 citations
,
December 2002 in “Biochimica et biophysica acta. G, General subjects/Biochimica et biophysica acta. General subjects (Online)” The research found two types of calcium in human hair, one that varies among individuals and another that is consistent across people.
30 citations
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November 1985 in “American Journal of Veterinary Research” Switch hair can indicate magnesium and copper levels in beef cows.
20 citations
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August 2017 in “Drug testing and analysis” Drugs localize differently in hair strands based on their properties.
12 citations
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November 2022 in “Toxics” EtG in hair can help detect alcohol use but may be inaccurate in people with certain health conditions.
5 citations
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January 2021 in “Biomedicine & Pharmacotherapy” Policosanol helps treat hair loss by balancing hormones and supporting hair growth.
4 citations
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December 2018 in “Macedonian Journal of Chemistry and Chemical Engineering” A new method accurately measures amino acids in treated hair, showing bleaching reduces amino acids while protein treatments increase them.
3 citations
,
August 2019 in “Medika Tadulako: Jurnal Ilmiah Kedokteran Fakultas Kedokteran dan Ilmu Kesehatan” A 3% hair tonic with bitter melon leaf and carrot extracts boosts hair growth effectively.
2 citations
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June 2021 in “Medicine” High levels of cortisol in hair are linked to a greater risk of brain aneurysm rupture.
1 citations
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October 2020 Hair can reliably measure average estradiol levels over months in humans and monkeys.
September 2025 in “Cosmetics” NMN supplements may improve hair quality and appearance in middle-aged women.
August 2025 in “Applied Sciences” Peroxide-rich plasma-activated water is gentler on hair than nitrate-rich formulations.
June 2025 in “Frontiers in Bioengineering and Biotechnology” Recombinant collagen with nicotinamide boosts hair growth and health.
November 2024 in “Frontiers in Endocrinology” Hair analysis can help diagnose adrenal disorders non-invasively.
March 2024 in “American journal of veterinary research” Clippers are the best tool for collecting dog hair for chemical tests, being fast and stress-free for the dog.
May 2023 in “Frontiers in chemistry” Zolpidem shows up in hair from the top back of the head after one dose and fades over time, suggesting it gets into hair through blood and sweat.
July 2022 in “Research Square (Research Square)” Hair analysis can somewhat track past testosterone levels but is influenced by factors like hair washing, growth rate, sex, and hair color.
February 2019 in “Psychoneuroendocrinology” Hair samples can reliably show average long-term hormone levels in young women.
63 citations
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August 1996 in “Forensic Science International” Cosmetic treatments like bleaching and perming can greatly reduce opiate levels in hair, possibly leading to false-negative drug tests.
51 citations
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January 2004 in “Domestic animal endocrinology” Melatonin implants and long daylight hours alter the timing of hormone release and hair growth in mouflon sheep.
43 citations
,
January 2013 in “Indian Journal of Dermatology, Venereology and Leprology” The article concludes that advancements in hair cosmetics require dermatologists to stay informed about products and their potential risks, including allergies and higher risks for hairdressers.
17 citations
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June 2012 in “Journal of experimental zoology. Part B, Molecular and developmental evolution” Hair in mammals likely evolved from glandular structures, not scales.
15 citations
,
January 1971 in “Journal of animal science/Journal of animal science ... and ASAS reference compendium” Hair analysis can't determine ponies' calcium and phosphorus levels; use soil and feed tests instead.
14 citations
,
June 2018 in “Frontiers in pharmacology” Green tea compound EGCG helps mink hair follicles grow by affecting certain cell growth pathways.
11 citations
,
January 2017 in “Evidence-based Complementary and Alternative Medicine” DA-5512 effectively improves hair growth and health, performing better than minoxidil.
10 citations
,
December 2019 in “International journal of medicinal chemistry” Chemicals from the plant Dicerocaryum senecioides were found to safely speed up and increase hair growth in mice.
10 citations
,
January 2019 in “Biomarker Insights” Scalp cooling to prevent hair loss from chemotherapy works for some but not all, and studying hair damage markers could improve prevention and treatment.
5 citations
,
February 2019 in “Journal of oceanology and limnology (Online)” Ecklonia cava extract can reduce the damage and stress caused by hair dye.