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Keratin cyclic

The process of keratinization is continuous in the surface epidermis, while in the hair follicle the matrix cells undergo periods of quiescence during which no mitotic activity occurs. This cyclic activity of the hair bulb allows for the seasonal change in the hair coat of domestic animals. The length of time to regrow new hairs depends... [Pg.857]

The cyclic nature of the PVP amide functionality has attributes similar to the polyamide bonding of proteins, such as collagen and keratin, which occur in human skin and hair. For this reason, emulsions stabilized with PVP have excellent substantivity to these proteins and deliver humectancy and lubriciousness to a formulation that helps to soften and moisturize the skin (42,44). [Pg.246]

See other pages where Keratin cyclic is mentioned: [Pg.239]    [Pg.299]    [Pg.214]    [Pg.221]    [Pg.244]    [Pg.319]    [Pg.1]    [Pg.15]    [Pg.359]    [Pg.551]    [Pg.564]    [Pg.25]    [Pg.441]    [Pg.61]    [Pg.81]   
See also in sourсe #XX -- [ Pg.63 , Pg.81 , Pg.90 ]



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