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    GlossaryHair Shaft (Hair fiber)

    visible part of hair extending above the skin's surface

    The hair shaft is the visible part of the hair that extends above the skin's surface. It is composed of three layers: the cuticle (outer layer), the cortex (middle layer), and the medulla (inner layer). The hair shaft is primarily made of keratin, a protein that provides strength and resilience. Understanding the structure of the hair shaft is crucial for professionals in dermatology and cosmetology, as it influences hair health, texture, and response to treatments.

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      community Hair transplant at Capilar Hair Center w/ doctor Jimmy Cortez

      in Progress Pictures  263 upvotes 1 year ago
      A user shared their satisfaction with a hair transplant done by Dr. Jimmy Cortez at Capilar Hair Center, but others in the conversation questioned the authenticity of the results, suspecting the use of hair fibers and deceptive advertising. Some found the hairline natural-looking, while others criticized it as artificial or unnecessary.

      community How obvious is it that I am using hair fibers to thicken my hairline?

      in Product  177 upvotes 1 week ago
      The user uses Toppik hair fibers to thicken their hairline and has switched from finasteride to dutasteride and oral minoxidil, noticing more hair thickening. Most responses indicate the hair fibers are not noticeable, and many suggest the user doesn't need them as their hair looks natural and good for their age.

      community LeBron James has the most mysterious hair

      in Progress Pictures  166 upvotes 1 year ago
      LeBron James likely uses hair transplants and possibly hair fibers or sprays to maintain his hairline, but his crown remains problematic. Despite his wealth, he hasn't fully resolved his hair loss, leading to speculation about his treatments and choices.