128 citations
,
January 1996 in “Journal of analytical toxicology.” Hair analysis can detect cocaine use but doesn't accurately show the amount or timing of use.
14 citations
,
April 2021 in “Frontiers in Psychiatry” Overall alcohol consumption decreased during lockdown, but heavy drinkers consumed more.
4 citations
,
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.
4 citations
,
July 2019 in “IOP conference series” Most young men with early gray hair have low vitamin D but normal iron levels.
113 citations
,
September 2005 in “Journal of Investigative Dermatology” Applying a special compound can promote hair growth without harmful side effects.
47 citations
,
June 2019 in “Nature Communications” Noncoding dsRNA boosts hair growth by activating TLR3 and increasing retinoic acid.
September 2022 in “bioRxiv (Cold Spring Harbor Laboratory)” A new staining method shows a special area in the hair's skin layer with lots of proteoglycans.
61 citations
,
April 2012 in “British Journal of Dermatology” Caucasian women's hair appears thickest in their 20s, with perceived thinning after mid-30s due to both decreasing density and diameter.
8 citations
,
March 2020 in “Dermatologic Therapy” The new hair loss treatment kit was safe and improved hair growth without any adverse effects.
September 2013 in “Science” Undergraduate research experiences boost students' research skills, confidence, and career aspirations.
1 citations
,
November 2020 in “bioRxiv (Cold Spring Harbor Laboratory)” Quantifying hair shape is better than using racial categories for understanding hair characteristics.
93 citations
,
February 2008 in “Atmospheric environment” Ozone reacts more with unwashed hair, producing compounds due to scalp oils, which could lower ozone exposure but increase exposure to reaction products.
15 citations
,
January 2008 in “Annales de Toxicologie Analytique” Hair test results can be misleading due to contamination, so they shouldn't be used alone to determine drug use.
13 citations
,
May 2022 in “Cell discovery” The study found new details about human hair growth and suggests that preventing a specific biological pathway could potentially treat hair graying.
9 citations
,
June 2020 in “Tissue Engineering and Regenerative Medicine” HHORSC exosomes and PL improve hair growth treatment outcomes.
8 citations
,
November 2019 in “International Journal of Morphology” Henna dye improves hair cuticle and thickness but effects vary by hair type and health.
25 citations
,
May 2021 in “Journal of exposure science & environmental epidemiology/Journal of exposure science and environmental epidemiology” Common Black hair care products may affect hormone levels and potentially impact health, especially in reproductive and metabolic areas.
86 citations
,
June 2017 in “Stem cell investigation” Stem cells from hair follicles can safely treat hair loss.
77 citations
,
July 2020 in “Cell” Muscles and nerves that cause goosebumps also help control hair growth.
32 citations
,
May 2018 in “Cell Cycle” Melatonin helps Cashmere goats grow more hair by affecting certain genes and cell pathways.
7 citations
,
July 2018 in “International Journal of Applied Pharmaceutics” Chitosan nanoparticles are promising for sustained caffeine delivery through the skin.
5 citations
,
July 2019 in “Research Square (Research Square)” Yak hair growth is influenced by genes and hormones, helping them adapt to alpine environments.
2 citations
,
March 2021 in “Journal of Cosmetic Dermatology” Umbilical cord-derived media is safe and effective for hair growth.
February 2026 in “Clinical Cosmetic and Investigational Dermatology” Female pattern hair loss is linked to genetics, family history, and lifestyle factors.
September 2025 in “Clinical Cosmetic and Investigational Dermatology” Exosome therapy shows promise for hair growth with minimal side effects, but more research is needed.
37 citations
,
February 2014 in “Journal of Dermatology” Valproic acid increases hair count in men with hair loss.
34 citations
,
November 2013 in “Breast Cancer Research and Treatment” Aromatase inhibitor therapy for breast cancer increases the risk of hair loss and thinning.
8 citations
,
January 2015 in “World Journal of Gastroenterology” Hair loss is common in IBD patients, and some medications may lower the risk.
7 citations
,
January 2019 in “Aesthetic Plastic Surgery” Patients felt happier with their looks and younger after hair transplant surgery, but their well-being and social life didn't change much.
January 2021 in “Journal of cosmetology & trichology” Ageratum conyzoides L. extract may effectively and safely treat hair loss.