15 citations
,
July 2012 in “Biological trace element research” Higher hair calcium to magnesium ratios and lower chromium levels in hair may indicate insulin resistance in Korean men.
7 citations
,
January 1986 in “Prenatal Diagnosis” Fetal skin biopsy can help diagnose protein-related disorders before birth.
8 citations
,
January 2020 in “International Journal of Cosmetic Science” The combination of specific chemicals improves hair density in women.
Mineral deposits form in hair follicles after skin injury, faster in rats given DHT.
119 citations
,
August 2010 in “Journal of Investigative Dermatology” Increased 11β-HSD1 activity in skin may contribute to aging and could be targeted to reduce aging effects.
3 citations
,
May 2022 in “Clinical endocrinology” Hair steroid measurement is an effective method to diagnose and monitor CAH in developing countries.
Prussian Blue causes hair cuticles to detach, weakening the hair.
June 2025 in “Mağallaẗ ʻulūm al-rāfidayn” New pyrazole derivatives may help treat hair loss, but more testing is needed.
59 citations
,
May 2017 in “Scientific reports” ZDHHC13 is important for normal liver function and metabolism, affecting mitochondrial activity.
54 citations
,
July 1967 in “Science” Decomposed tritiated thymidine is less accurate for DNA tracing, and hair changes can indicate malnutrition.
January 2017 in “Nihon Keshouhin Gijutsushakaishi/Journal of S C C./Nihon Keshouhin Gijutsushakai kaishi” Sunlight and chemical treatments change hair's internal structure differently, needing specific care.
27 citations
,
November 2013 in “Dermatologic Therapy” New test predicts if hair loss treatment will work.
March 1963 in “Sangyo Igaku” Women generally have higher levels of iron, copper, and zinc in their hair than men, with differences increasing with age.
5 citations
,
October 2021 in “Vlaams Diergeneeskundig Tijdschrift” The protocol is easy to use, but reliable results need the same person to assess each time.
5 citations
,
April 2022 in “Journal of Chromatography B” The new method can measure sleep-related hormones in hair effectively and could help track long-term sleep patterns.
5 citations
,
January 1997 in “Journal of Occupational Health” The method effectively maps lead and zinc in hair, aiding understanding of heavy metal exposure risks.
6 citations
,
September 2018 in “ACS applied bio materials” Calcium fatty acid deposits found in human hair can change its appearance and feel.
May 2016 in “Endocrine Abstracts” Proximal hair cortisol is a reliable tool for diagnosing Cushing's Syndrome.
July 1995 in “Journal of Dermatological Science” 30 citations
,
February 1996 in “Journal of Investigative Dermatology”
April 2025 in “BMC Chemistry” Thiadiazole chitosan conjugates improve hair manageability, moisture, and protection in conditioners.
June 2023 in “Experimental dermatology” Pubic hair has a thicker, more protective outer layer than scalp hair, possibly due to evolution.
January 2023 in “Indian Journal of Natural Products and Resources” Suaeda monodiana extract may help treat skin diseases due to its protective and healing properties.
6 citations
,
November 1980 in “Clinical Endocrinology” Measuring plasma testosterone glucosiduronate is a reliable way to detect high male hormone levels in women.
7 citations
,
September 2024 in “Scientific Reports” Sebum samples remain stable under various storage conditions, making them suitable for remote and at-home testing.
65 citations
,
May 2006 in “Journal of Structural Biology” Hair curliness is due to uneven distribution of different cortices within the hair fiber.
2 citations
,
January 1977 in “PubMed”
7 citations
,
January 1982 in “Acta agriculturae Scandinavica” Mink use L-methionine and L-cystine slightly better than natural amino acids for hair growth, but D-methionine is not effective.
April 2025 in “International Journal of Cosmetic Science” A new hair perming method avoids damage and lasts longer than traditional methods.
8 citations
,
January 2018 in “Journal of cosmetic dermatology” Conditioners in hair dye reduce damage and improve combability.