TLDR Keratin proteins are consistent across different hair types from the same person.
The study compared the electrophoretic patterns of proteins extracted from various types of human hair (head, pubic, breast, beard, arm, leg, axillary, and eyebrow) using sodium dodecyl sulfate-polyacrylamide gel electrophoresis. It found that the keratin phenotypes were consistent across different hair types from the same individual. Additionally, keratin typing could be successfully performed after determining the ABH blood group using mixed cell agglutination with the same hair samples.
15 citations,
January 1987 in “Electrophoresis” Human head hair proteins can be typed into eight distinct patterns, useful for genetic and forensic investigations.
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20 citations,
September 2018 in “Journal of colloid and interface science” Modified keratin binds better to hair, especially bleached hair.
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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.
8 citations,
January 2015 in “Genetics and molecular research” Researchers found four key proteins that affect the development of a specific hair type in Yangtze River Delta white goats.
24 citations,
April 2017 in “Oncology Reports” The hair keratin gene KRT81 is found in both normal and breast cancer cells and helps them invade surrounding tissues.
January 2013 in “Transactions of the Materials Research Society of Japan” CMADK reduces hair damage from bleaching and permanent waving.
