Study Shows Thicker Hair Isn’t Necessarily Stronger

December 2019 in “ C&EN Global Enterprise ”

Kerri Jansen

New to Keratin? There is a guide in the encyclopedia. Read the guide →

keratin keratin fibers chemical bonds hair strength biomaterials cosmetic applications

Studysummary This study found that the internal structure and fracture patterns of hair vary among different mammal species, which could inform the development of keratin-based biomaterials for medical and cosmetic applications.

Automatically generated from the study's abstract, not written by a person, and not a review of the full paper. Not medical advice or a treatment recommendation. Read the original study, and consult a qualified healthcare professional before changing treatment. Full disclaimer ·

View this study on pubs.acs.org →

Discuss this study in the Community →

Related Research

9 / 9 results

research Effect of Shampoo, Conditioner, and Permanent Waving on the Molecular Structure of Human Hair

37 citations , October 2015 in “PeerJ”

This study found that shampoo and conditioner do not alter hair's molecular structure, while perming treatments significantly affect keratin and intermediate filament structures due to bond alterations.

research The Structure of People's Hair

107 citations , October 2014 in “PeerJ”

This study found that while molecular hair structures were nearly identical across individuals, genetic factors seem to influence specific lipid compositions, as seen in identical-patterned hair from parent-child pairs and identical twins, but not fraternal twins.

research Keratins and Lipids in Ethnic Hair

55 citations , January 2013 in “International Journal of Cosmetic Science”

In this study, researchers found that higher concentrations of internal lipids in African hair may influence its keratin structure, as observed through various analytical methods.

research Characterization of the Human Hair Keratin-Associated Protein 2 (KRTAP2) Gene Family

52 citations , April 2012 in “Journal of Investigative Dermatology”

This study found that KRTAP2 proteins predominantly express in the hair shaft cortex of humans, interact with hair keratins, and play crucial roles in hair shaft keratinization.

research Unzipping the Cuticle of the Human Hair Shaft to Obtain Micron/Nano Keratin Filaments

7 citations , August 2006 in “Biopolymers”

This study demonstrated that human hair shafts can be anatomically separated to obtain intact micron and nano keratin filaments using solvents like performic acid and urea.

research Human Hair Keratin-Associated Proteins

71 citations , August 2005 in “The journal of investigative dermatology. Symposium proceedings/The Journal of investigative dermatology symposium proceedings”

This study revealed that human keratin-associated protein genes are expressed in specific patterns in hair fiber regions and vary in size, with some variations distinct across different populations.

research The Catalog of Human Hair Keratins

235 citations , July 1999 in “Journal of biological chemistry/The Journal of biological chemistry”

This study establishes a catalog of human type I hair keratins and identifies their specific roles and expression patterns during hair differentiation and growth in scalp follicles.

research The Extraction And Characterization Of Human Nail Keratin

36 citations , December 1991 in “Journal of Dermatological Science”

Human nails contain both skin and hair keratins, each needing different extraction methods.

research X-Ray Studies of the Structure of Hair, Wool, and Related Fibers. II. - The Molecular Structure and Elastic Properties of Hair Keratin

12 citations , January 1934 in “Proceedings of the Royal Society of London Series B Containing Papers of a Biological Character”

This study found that the X-ray patterns of stretched mammalian hair (β-keratin) are similar to those of natural silk (fibrion), suggesting a similar elastic mechanism involving reversible intra-molecular transformations.