Matter and the Nonkeratin Regions of Hair

it would appear that the dominant factor for determining crimp in human hair and other coarse animal hairs is the protein composition of the matrix of each cortical cell. This factor could determine the state of swelling of the cortical cells during keratinization or hardening and, therefore, the shape of the hair fiber as it emerges through the skin. 

Part of the intercellular complex may be isolated by oxidation of the hbers with peracetic acid according to the method of Alexander and Earland [92], This isolated complex is called beta keratose, and it amounts to about 15% of the hair hber mass [133] consisting of proteinaceous material with low disulhde content. 

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