5 citations
,
January 2010 in “The anatomical record” Most dogs have hair whorls on their chest and limbs, with shelter dogs and short-haired dogs having more chest whorls.
210 citations
,
February 2008 in “Nature genetics” Mutations in the P2RY5 gene cause autosomal recessive woolly hair.
April 2019 in “Progress in Crystal Growth and Characterization of Materials” Hair grows like a crystal at a solid-liquid interface without cell division.
1 citations
,
November 2019 in “Applied sciences” Human hair provides more UV protection when aligned and at higher angles, but the scalp still gets UV exposure.
2 citations
,
October 2024 in “Tropical Journal of Pharmaceutical and Life Sciences” Mother-in-law's tongue is used for pain relief and treating various health issues.
January 2026 in “Nano-Micro Letters” 4D scaffolds made with melt electrowriting can change shape for use in medicine.
10 citations
,
January 2002 in “Nihon Keshouhin Gijutsushakaishi/Journal of S C C./Nihon Keshouhin Gijutsushakai kaishi” The cuticle significantly contributes to hair stiffness, making up about 60% of the total bending stress.
November 2024 in “International Journal of Cosmetic Science” Hair absorbs moisture differently based on its structure and treatment, with changes occurring at 30% humidity.
1 citations
,
July 2008 in “Expert Review of Dermatology” Normal hair thickness varies by scalp area and a mix of hair thicknesses is typical in healthy individuals.
1 citations
,
April 2019 in “PubMed” The medulla in Asian scalp hair has a tubular structure that allows ions and large molecules to flow through it.
4 citations
,
June 2022 in “ACS applied materials & interfaces” New wig coating technique makes them more durable, UV resistant, and less static.
June 2025 in “Journal of Cosmetic Dermatology” Bathroom heating lamps can damage hair, causing it to become dry, brittle, and broken.
161 citations
,
July 2003 in “ACM Transactions on Graphics” Researchers developed a new model for more realistic computer graphics rendering of hair by considering how light scatters on hair fibers.
50 citations
,
March 2001 in “Clinics in dermatology” Human hair is complex and grows in cycles starting from embryonic life.
3 citations
,
March 2010 in “International Journal of Cosmetic Science” Functionalized silicones improve hair appearance, combing, and manageability.
June 2024 in “British Journal of Dermatology” There are unequal access to wigs for alopecia patients in the UK, needing policy changes for fairness.
1 citations
,
March 2000 in “Chemical & engineering news” Companies buy other businesses to stay trendy and meet consumer needs in hair care.
15 citations
,
January 2018 in “Annals of Dermatology” Wigs significantly improve the well-being of people with severe hair loss.
Perms can damage hair and scalp, so proper assessment and care are essential.
6 citations
,
June 1981 in “PubMed” Whisker hair in young people might predict severe future hair loss.
2 citations
,
October 2018 in “Skin appendage disorders” A boy's hair that was frizzy and hard to comb returned to normal after 9 months, possibly due to genetic factors.
10 citations
,
January 2013 in “International Journal of Trichology” More vellus hairs in frontal scalp indicate early female pattern hair loss.
July 2025 in “Journal of Cosmetic Dermatology” The model shows how heat damages hair, helping test hair care products.
August 2003 in “Dermatologic Surgery” Craig Ziering created a system to classify scalp hair patterns, important for improving hair restoration surgery results.
7 citations
,
October 2019 in “Frontiers in bioengineering and biotechnology” Fusion proteins can protect hair from heat damage.
January 2016 in “International journal of clinical pediatrics” Valproic acid may cause temporary hair changes like loss or thinning in children.
20 citations
,
July 2010 in “Skin Research and Technology” Aging makes hair thinner and rougher, with less clear edges.
Hyaluronic acid in shampoo penetrated hair well, reduced frizz, and improved hair strength and moisture.
January 2018 in “대한미용학회지” White hair is denser and more hydrophobic than black hair.