November 2023 in “Journal of animal science/Journal of animal science ... and ASAS reference compendium” Pig hair cortisol levels are inheritable and linked to stress responses, which could help select for more resilient pigs.
Selenium levels are similar in healthy people from both high and low NPC risk areas.
3 citations
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April 2023 in “Journal of Veterinary Internal Medicine” Dogs with epilepsy have different hair mineral levels than healthy dogs, possibly due to epilepsy or its treatment.
2 citations
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March 2011 in “Veterinary Dermatology” FGF18 is present in beagle dog hair follicles, mainly in the inner root sheath.
November 2025 in “Biological Trace Element Research” Hair mineral analysis doesn't reliably show blood mineral levels but may help track long-term mineral trends.
February 2020 in “VSNU Open Access deal” Hair cortisol levels change with age, starting high at birth, decreasing until age 6, then rising to adult levels by age 18.
July 2012 in “EFSA supporting publications” The EFSA maintained its view that spermidine's effect on hair growth is related to disease treatment and does not meet the health claim criteria.
September 2025 in “Journal of the American Academy of Dermatology” Reducing SFRP1 can promote hair growth and may help treat hair loss.
November 2024 in “Journal of Investigative Dermatology” The research aims to better understand hair follicle regulation and find new treatments for hair loss.
September 2013 in “Canadian Medical Association Journal” Alopecia areata causes sudden hair loss, often resolves within a year, but can recur.
31 citations
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December 2017 in “Skin Appendage Disorders” Caucasians have the highest hair density, followed by Hispanics, with the lowest in individuals of African descent.
22 citations
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August 2016 in “European Eating Disorders Review” Adolescent girls with anorexia nervosa have lower hair cortisol levels than healthy and psychiatric peers.
18 citations
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May 1992 in “American Journal of Biological Anthropology” Higher androgen levels do not cause baldness in men.
12 citations
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November 2020 in “Journal of Dermatological Science” Found microRNA differences in hair cells, suggesting potential treatment targets for hair loss.
7 citations
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February 2005 in “Veterinary Dermatology” Horses with skin disease have more surface bacteria than healthy horses.
4 citations
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January 2017 in “JOURNAL OF CLINICAL AND DIAGNOSTIC RESEARCH” A thorough approach is crucial for accurately diagnosing hair loss in children.
3 citations
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September 2021 in “Journal of Food Science and Nutrition” Red Ginseng Extract helps hair grow and improves skin health by stimulating cell growth and enhancing the body's antioxidant defense system.
2 citations
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January 2023 in “Dermatology practical & conceptual” COVID-19 diagnosis is linked to new or worsening hair diseases, with stress from the pandemic likely contributing.
December 2025 in “Applied and Computational Engineering” Hair dyes can be harmful, but risks vary by person and can be reduced.
March 2026 in “Advanced Healthcare Materials”
September 2025 in “Biochemical and Cellular Archives/Biochemical and cellular archives” Herbal hair care products are effective, safe, and eco-friendly alternatives to synthetic ones.
The serum effectively promotes hair growth and reduces gray hair without side effects.
December 2024 in “Biomedical & Pharmacology Journal” Hair Tonic A, with white tea extract, is better for improving hair health.
May 2025 in “Lithuanian University of Health Sciences” Different diets had little effect on guinea pigs' hair and health.
January 2019 in “Journal of cosmetology & trichology” L-Cystine and L-Cystine with Kera-Diet® safely improved hair and nail quality in healthy women.
November 2025 in “Journal of Investigative Dermatology” Estetrol may help prevent hair loss and support hair growth in women.
1 citations
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January 2023 Functional foods can improve hair and skin health.
June 2015 in “Majallah-i 'ilmī-i dānishgāh-i 'ulūm-i pizishkī va khadamāt-i bihdāshtī darmānī-i Hamadān” Low vitamin D levels are linked to hair loss in women.
August 2022 in “Aesthetic Plastic Surgery” 24 citations
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October 2018 in “Addiction Biology” Alcohol dependence affects stress hormone levels more than childhood maltreatment.