February 2026 in “Cureus” Two methods reliably measure scalp area and hair count.
4 citations
,
April 2019 in “Cosmetics” Hair stiffness is higher when it has more para-like cortical cells.
1 citations
,
December 1972 in “Journal of Colloid and Interface Science” Ethanol spreads well on hair at low humidity but less so at higher humidity due to water condensation.
20 citations
,
July 1998 in “Archives of dermatology”
October 2023 in “Al-Anbar medical journal” The clinic-based hair fall count method is accurate and reliable.
16 citations
,
January 2010 in “Springer eBooks”
November 2025 in “Communications Biology” Human hair contains many different molecules that change along its length, influenced by personal care products.
Using silicon circular iron on Korean women's hair increases hair thickness the most.
32 citations
,
January 1966 in “Archives of Dermatology” The method accurately measures hair growth with minimal risk and is better than other techniques.
91 citations
,
December 2000 in “The journal of cell biology/The Journal of cell biology” Scientists successfully created mouse hair proteins in the lab, which are stable and similar to natural hair.
1 citations
,
January 2015 in “Journal of Society of Cosmetic Chemists of Japan” Keratin film can effectively measure hair texture and adsorption properties.
May 2026 in “Journal of Investigative Dermatology” 12 citations
,
February 2011 in “Zenodo (CERN European Organization for Nuclear Research)” Hair properties vary with age and ethnic origin.
January 2021 in “Advanced Biomedical Engineering” Needle shape affects the force needed for hair implants, with certain shapes reducing the effort required.
21 citations
,
June 2023 in “Proceedings of the National Academy of Sciences” Tightly curled scalp hair helps reduce heat from the sun, protecting against overheating.
4 citations
,
March 2015 in “Skin Research and Technology” Trichotillometry is a reliable method to measure hair strength and assess hair loss treatments.
1 citations
,
September 2024 in “International Journal of Cosmetic Science” Bleaching hair increases pore size and changes pore structure.
May 2023 in “Elsevier eBooks”
October 2001 in “Dermatologic Surgery” Cutting and implanting hair follicles can create finer, more natural-looking hairlines, with about half of the implanted hairs growing back.
1 citations
,
May 2009 in “Hair transplant forum international” The document's conclusion cannot be provided as the document is not accessible or cannot be parsed.
January 2022 in “Consultant” September 2008 in “Hair transplant forum international”
November 2023 in “Journal of Dermatological Science” A new computer tool quickly measures hair thickness differences in people with common types of hair loss.
20 citations
,
July 2010 in “Skin Research and Technology” Aging makes hair thinner and rougher, with less clear edges.
29 citations
,
March 2008 in “Dermatologic Surgery” The Cross-section Trichometer is a new tool that can measure hair quantity and detect hair loss and growth.
2 citations
,
January 2000 in “Elsevier eBooks” The document explains how hair is studied in forensics to identify its source and its role in criminal investigations.
3 citations
,
May 2012 in “Journal of Biological Macromolecules” Keratin film can effectively mimic human hair for testing hair damage.
7 citations
,
December 1987 in “Fertility and sterility” The vellus index is a simple, quick, and reliable method to assess and monitor hair growth, especially in hirsutism.
1 citations
,
July 2010 in “Dermatologic Surgery” Splitting one hair follicle into two can help regrow hair with a 50% to 70% success rate, useful when donor hair is limited.
1 citations
,
November 2022 in “DOAJ (DOAJ: Directory of Open Access Journals)” Male and female human hairs have different microscopic structures that can help in forensic analysis.