Medulla
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The layer of soft keratin within the hair shaft is the medulla. It is found in the center of the hair and its presence can vary between individuals and hair types. The medulla's function is not fully understood and it may play a role in providing structural support to the hair.
The layer of hard keratin that coats the hair is called the cuticle. It is the outermost layer of the hair shaft and serves as a protective barrier for the inner layers of the hair.
Hair is primarily made of a protein called keratin. Keratin contributes to the strength and structure of hair strands by forming a protective layer around the hair shaft, making it more resilient to damage and breakage.
Hair is primarily made up of a protein called keratin. Keratin contributes to the strength and structure of hair strands by forming a protective layer around the hair shaft, making it resilient to damage and breakage.
The primary protein component of the hair shaft is keratin. Keratin is a fibrous structural protein that gives hair its strength and resilience.
Hair is primarily made up of a protein called keratin. Keratin provides structure and strength to hair strands by forming a protective layer around the hair shaft, making it resilient to damage and breakage.