May 2026 in “Zenodo (CERN European Organization for Nuclear Research)” The hair oil formulation F2 is stable, appealing, and may promote hair growth and scalp health.
189 citations
,
January 2014 in “Journal of Visualized Experiments” Hair cortisol analysis effectively measures long-term stress.
34 citations
,
January 2016 in “Analytical Chemistry” A new method can quickly and accurately detect drugs in hair.
23 citations
,
January 2016 in “Brazilian Journal of Psychiatry” First-episode psychosis patients have higher hair cortisol levels, indicating early stress response issues.
22 citations
,
February 2002 in “European Neuropsychopharmacology” Hair analysis for drugs in psychosis patients is unreliable due to varying hair growth rates.
10 citations
,
February 1993 in “International Journal of Cosmetic Science” Clove, olive, and turpentine oils stop fungi from penetrating hair.
9 citations
,
February 2020 in “Stress” Children with lower inhibitory control experience more stress when starting third grade.
November 2025 in “Wiley Interdisciplinary Reviews Forensic Science” Hair testing is a useful method for detecting past substance use and recent advancements improve its accuracy and reliability.
September 2021 in “Psychoneuroendocrinology” Nurses had higher stress levels during intense phases of the COVID-19 pandemic.
28 citations
,
March 2014 in “Biological reviews/Biological reviews of the Cambridge Philosophical Society” The document concludes that hair curvature can be explained by the growth patterns caused by the shape and separation of cells in the hair follicle and is affected by specific molecular pathways.
21 citations
,
January 1995 in “Molecular Biology Reports” Scientists discovered two versions of a new human hair keratin gene.
13 citations
,
April 2009 in “PLOS ONE” No clear link between androgen receptor variation and hair loss, but more research needed.
7 citations
,
July 2012 in “Regenerative Medicine” New treatments for diabetes, central nervous system repair, and cartilage injury were found, and a way to create functional hair follicles from stem cells was developed.
1 citations
,
December 2021 in “American Journal of Obstetrics and Gynecology” Hair cortisol levels peak in the third trimester and decline postpartum.
Hair styling products can cause skin irritation.
September 2024 in “Toxicology Letters” Cortisone and cortisol levels in pregnant women’s hair increase as labor approaches, indicating higher stress.
June 2014 in “Toxicologie analytique et clinique/Annales de toxicologie analytique” Hair analysis can be unreliable due to external contamination and varying drug concentrations.
152 citations
,
December 2003 in “Micron” As people age, their hair follicles produce less pigment, leading to gray and white hair, due to factors like reduced enzyme activity and damage to melanocyte DNA.
50 citations
,
March 2001 in “Clinics in dermatology” Human hair is complex and grows in cycles starting from embryonic life.
49 citations
,
August 1999 in “Journal of Investigative Dermatology” Overexpressing the MSX-2 gene in mice causes skin and hair growth issues.
18 citations
,
November 1981 in “JAMA” The Beverly Hills Diet is unscientific, potentially harmful, and could cause serious health issues.
14 citations
,
April 2013 in “Journal of dermatological science” Hairless protein reduces Msx2 gene activity, affecting hair follicle development.
8 citations
,
November 2017 in “PubMed” New research suggests treating hair loss should focus on common inflammation rather than individual molecules.
Hair follicles emit electromagnetic fields due to S100 proteins.
3 citations
,
January 2019 in “Dermatology and therapy” Scalp massages may help stabilize or regrow hair in people suffering from hair loss, regardless of age, gender, or use of other treatments.
June 2017 in “Mechanisms of development” Hox genes control hair follicle stem cell regeneration in different body regions.
Medieval poultices by Abulcasis were used to treat hair loss.
July 2025 in “International Journal of Cosmetic Science” A new 6-point scale reliably measures heat damage to hair from styling tools.
May 2024 in “Clinical Cosmetic and Investigational Dermatology” Manipulating cell cleanup processes could help treat hair loss.
April 2023 in “Dermatologica Sinica” Sex hormones affect hair growth and loss, and treatments for related hair diseases include various medications, hair transplantation, and light therapy.