18 citations
,
January 2008 in “Sen'i Gakkaishi” Thioglycolic acid and L-cysteine change hair structure differently during perms, affecting hair strength and curling efficiency.
13 citations
,
January 2017 in “Cosmetics” Different tests are used to see how hair care products affect hair, and choosing the right test is important for accurate results.
5 citations
,
October 1988 in “Clinics in Dermatology” Minoxidil promotes hair growth but exact mechanism is unknown.
3 citations
,
October 2020 in “Dermatology Practical & Conceptual” Bubble hair damage is caused by high heat from styling tools, and trichoscopy helps diagnose it.
January 2019 in “Durham e-Theses (Durham University)” Advanced microscopy shows hair damage and keratin proteins' roles, aiding future cosmetic treatments.
30 citations
,
April 2017 in “Journal of structural biology” Human hair keratin fibers have a detailed nano-scale structure that changes with different conditions.
10 citations
,
June 2005 in “Small ruminant research” Melatonin treatment may increase cashmere production in Spanish goats.
October 2023 in “International journal of molecular sciences” Key proteins and pathways regulate wool fiber diameter in Alpine Merino sheep.
September 2022 in “Canadian journal of animal science” Certain gene variations are linked to the thickness of cashmere goat hair.
3 citations
,
January 2024 in “Frontiers in Endocrinology” Androgens can affect glucocorticoid signaling in specific mouse brain areas.
5 citations
,
January 2018 in “International Journal of Trichology” Hair strength is similar across different scalp areas, and not affected by age, gender, or hair thickness.
1 citations
,
September 2024 in “Animals” Specific gene variants affect wool traits in Chinese Tan sheep.
1 citations
,
May 2013 in “PubMed” Glycylglycine makes hair softer by improving alignment and changing hair's internal properties.
July 2025 in “Dermatology Practical & Conceptual” Hair changes and a high occipital hairline may help diagnose Trichorhinophalangeal Syndrome.
140 citations
,
February 2014 in “Neuron” Delta opioid receptors help regulate touch sensation by reducing neurotransmitter release in the spinal cord.
132 citations
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August 2008 in “Development” Dlx3 is essential for hair growth and regeneration.
84 citations
,
April 2015 in “Cosmetics” Hair dyes vary in how long they last and how deeply they penetrate hair.
40 citations
,
April 1999 in “Journal of Histochemistry & Cytochemistry” S100A3 protein is mainly found in specific parts of human hair cells.
15 citations
,
August 2020 in “Analytical chemistry” Hair lipids do not protect against humidity.
7 citations
,
May 1988 in “International Journal of Dermatology” The patient's hair has unique structural differences with alternating bright and dark bands.
2 citations
,
July 2019 in “Cosmetics” Beautiful hair is flexible and elastic due to its unique double-layered structure and can be enhanced with succinic acid treatment.
1 citations
,
September 2023 in “Animals” A new goat gene affects cashmere fiber thickness; certain variations can make the fibers coarser.
1 citations
,
August 2017 in “Journal of food and nutrition research” The herbal supplement increased hair thickness and reduced scalp oiliness in women.
The KRT84 gene is linked to better wool quality in Gansu Alpine Fine-wool sheep.
KRTAP6 genes affect wool quality in sheep.
Human hair can almost fully recover its structure within about 1,000 minutes after being stretched.
Hair can't be as strong as Rapunzel's because it's impractical to scale up due to defects.
January 2017 in “Journal of Cosmetics, Dermatological Sciences and Applications” Chinese women's hair gets thinner and grayer with age, and scalp conditions change, especially after 40.
3 citations
,
February 2023 in “International Journal of Molecular Sciences” Autologous Platelet and Extracellular Vesicle-Rich Plasma (PVRP) has potential in enhancing tissue regeneration and improving hair conditions, but its effectiveness varies due to individual differences.
2 citations
,
July 2023 in “International Journal of Molecular Sciences” BFNB could be a promising treatment for hair growth.