Treating hair with 1M sodium hydroxide increases its friction, making it better for small medical knots.
Researchers developed a new model for more realistic computer graphics of hair by considering how light scatters on hair fibers.
40 citations,
April 2006 in “Journal of the European Academy of Dermatology and Venereology” The Trichoscan system was found to be inaccurate for measuring hair growth, needing better software to be useful.
June 2023 in “Journal of cosmetic dermatology” Dermatologists should know hair prosthetic options to better help alopecia patients.
January 2003 in “Chinese Journal of Reparative and Reconstructive Surgery” Dermal papilla cells can help form hair follicles and produce hair.
Hair fibers degrade and change color in very basic water.
2 citations,
June 1997 in “The American Journal of Cosmetic Surgery” Scalp camouflage is important for patients to feel confident after hair surgery and can also help those with early hair loss.
15 citations,
October 2004 in “Colloids and surfaces. B, Biointerfaces” Holes in mature hair are likely caused by the removal of substances during hair care.
51 citations,
January 2014 in “International journal of trichology” Shampoo pH can affect hair health, with alkaline shampoos potentially causing damage and acidic shampoos reducing frizz.
17 citations,
December 2002 in “Biochemical and biophysical research communications” Scientists found out how a specific protein in human hair cuticles behaves and is structured.
2 citations,
January 2006 in “International Journal of Cosmetic Science” The study found that certain conditioning compounds can penetrate hair and potentially improve its resistance to damage.
2 citations,
January 2002 in “PubMed” The new test shows how hair treatments affect hair's bending stiffness by swinging a pendulum through hair fibers.
Hyaluronic acid in shampoo penetrated hair well, reduced frizz, and improved hair strength and moisture.
9 citations,
January 1989 in “Sen'i Gakkaishi” Wool and hair fibers absorb moisture similarly due to their keratin structure, with the amount of non-crystalline areas affecting the moisture uptake.
2 citations,
January 2020 The document describes a method for preparing hair for microscopy by embedding it in plastic, cutting it, and storing it cold before imaging.
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.
14 citations,
January 1996 in “Journal of Forensic Sciences” Hair can absorb and transfer opiates when soaked in water, with damaged hair absorbing more.
63 citations,
August 1996 in “Forensic Science International” Cosmetic treatments like bleaching and perming can greatly reduce opiate levels in hair, possibly leading to false-negative drug tests.
43 citations,
September 2001 in “Scanning” Hair treatments like bleaching increase friction by exposing tiny pores on the hair surface.
1 citations,
July 2019 in “Microscopy Today” Microfluorometry effectively measures how much polymer coats and penetrates hair, useful for evaluating hair products.
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.
33 citations,
June 1995 in “International journal of legal medicine” Environmental factors can greatly reduce drug levels in hair.
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.
10 citations,
September 2020 in “Biopolymers” Hair's structure and properties change with pH; acidic pH maintains strength and less swelling, while alkaline pH increases water content and swelling.
11 citations,
February 2019 in “Frontiers in Physiology” Hair properties are interconnected; a comprehensive, cross-disciplinary approach is essential for understanding hair behavior.
7 citations,
October 2019 in “Frontiers in bioengineering and biotechnology” Fusion proteins can protect hair from heat damage.
23 citations,
October 2007 in “International journal of cancer” X-ray diffraction of hair might help detect breast cancer non-invasively.
March 2007 in “International Journal of Cosmetic Science” Hair with more melanin resists weather damage better.
3 citations,
January 2002 in “Springer eBooks” Alkaline hair relaxers damage hair, but cationic and non-ionic polymers can help reduce this damage.
August 2020 in “Textile research journal” The model helps understand how wool fiber structure affects its strength and flexibility.