October 2022 in “Linköping University medical dissertations” The method shows hair testosterone levels reflect those in saliva, but are affected by various factors and may indicate a risk for heart attack.
23 citations
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October 2008 in “Experimental and Clinical Endocrinology & Diabetes” Hair can show increased cortisol levels during late pregnancy.
47 citations
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July 1967 in “Science” Not eating enough protein can cause hair roots to shrink and lose color, and hair to become thinner.
34 citations
,
January 2011 in “Annals of dermatology/Annals of Dermatology” Using a hair dryer at 15 cm with continuous motion causes less damage than natural drying.
29 citations
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January 2021 in “Journal of Investigative Dermatology” Fat under the skin releases HGF which helps hair grow and gain color.
5 citations
,
November 2020 in “Forensic Science International Genetics” Using trait prevalence priors in genetic prediction models for appearance traits is currently impractical due to limited knowledge and potential accuracy issues.
1 citations
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August 2025 in “Journal of Investigative Dermatology” Genetic studies on hair traits can improve understanding of health and disease.
January 2025 in “Medicina” 25% of women in North Sudan have traction alopecia, linked to family history and hair treatments, highlighting the need for better hair care awareness.
June 2024 in “Molecules/Molecules online/Molecules annual” Platycladus orientalis flavonoids protect balding hair from UV damage and slow hair color change.
December 2023 in “Frontiers in Medicine” Hair samples can reliably monitor tacrolimus levels in kidney transplant patients.
Local hairline measurements are important for better surgical results and early disease detection in Colombian women.
May 2014 in “Hair transplant forum international” Scalp tools, tracking progress, targeting scalp inflammation, and avoiding certain hair treatments can improve female hair loss treatment.
January 2003 in “Research Portal (King's College London)” Hair color affects light reflection, with black hair having higher cuticle angles and lighter hair showing less specular reflection.
12 citations
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May 2023 in “EMBO reports” High mTORC1 activity slows hair growth and causes it to lose color.
Hair can naturally regain color after greying, and this change may be linked to stress levels.
Hair can naturally regain color, and stress might influence greying and its reversal.
April 2023 in “Medizinische Genetik” Male-pattern hair loss is largely influenced by genetics, with key genes identified.
81 citations
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October 2014 in “The journal of investigative dermatology/Journal of investigative dermatology” Certain genes control the color of human hair by affecting pigment production.
6 citations
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January 2007 in “Actas dermo-sifiliográficas/Actas dermo-sifiliográficas” Gray hair regained color after thyroid hormone treatment.
Coreopsis tinctoria Nutt. extract can effectively dye hair yellow or dark brown with good wash durability.
March 2026 in “International Journal of Advanced Biochemistry Research” German shepherd hair varies in color and pattern but is flat with a consistent internal structure.
September 2017 in “Journal of Investigative Dermatology” The new scalp treatment preserves hair color, reduces hair loss, and maintains hair strength.
58 citations
,
February 2016 in “Scientific reports” Blocking BACE1 and BACE2 enzymes causes hair color loss in mice.
30 citations
,
June 2006 in “British journal of dermatology/British journal of dermatology, Supplement” Oral zinc sulphate reduces dark hair color in mice.
13 citations
,
September 2005 in “Eclética Química” Quick, accurate minoxidil measurement in hair loss products using photometric flow titration.
January 2024 in “International Journal of Herbal Medicine” Melanin is important for hair color, health, and UV protection.
4 citations
,
January 2002 in “Indian Journal of Pharmaceutical Sciences” A new method accurately measures finasteride in tablets using color change and light absorption.
June 2025 in “Animal Bioscience” miRNA-24 affects goat coat color by controlling proteins involved in pigment production.
11 citations
,
January 2012 in “Journal of cell science” Rac1 is essential for proper hair structure and color.
September 2023 in “Journal of the turkish academy of dermatology” Men with male pattern baldness had higher body fat and obesity-related measurements but similar heart fat and artery thickness compared to healthy men.