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    GlossaryHair Shaft Structure

    three main layers of a hair strand: cuticle, cortex, medulla

    The hair shaft structure refers to the three main layers of a hair strand: the cuticle, cortex, and medulla. The cuticle is the outermost layer, made of overlapping cells that protect the inner layers. The cortex, which is the thickest layer, contains keratin and pigments that give hair its strength, color, and texture. The medulla, found in thicker hair types, is the innermost layer and consists of a soft, spongy core. Understanding these layers is crucial for diagnosing hair conditions and developing effective hair care treatments.

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      community Us curly/ wavy hair guys have it worse

      in Chat  39 upvotes 1 week ago
      Curly and wavy hair can make hair loss appear worse due to clumping, but using less product, shorter cuts, and leave-in conditioner can help manage appearance. Minoxidil and finasteride are considered for treatment, and some find that styling can hide thinning areas.
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      community Got a microscope camera. Here’s the difference between healthy and miniaturized hair

      in Progress Pictures  492 upvotes 2 years ago
      A user who shared progress pictures of their scalp using a microscope camera, demonstrating the difference between healthy and miniaturized hair. Various explanations for the cause of this were discussed, such as DHT build-up in scalp sebum causing an autoimmune response leading to inflammation and eventual hair loss, with some suggesting a do-it-yourself treatment involving adding ascorbic acid powder to shampoo.