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    GlossaryHair Shaft Abnormalities

    structural defects in visible hair causing fragility or unusual appearance

    Hair Shaft Abnormalities refer to structural defects in the hair shaft, the visible part of the hair that extends above the scalp. These abnormalities can result in hair that is fragile, prone to breakage, or has an unusual appearance, such as twisting, kinking, or splitting. Causes can range from genetic conditions to environmental damage or nutritional deficiencies.

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      an anticonvulsant repurposed for hair loss via histone inhibition

      learn Follistatin

      glycoprotein that inhibits TGF-β and promotes hair growth by antagonizing activin

      learn GHK-Cu

      a copper peptide showing promise in both regrowth and reversing gray hair

      learn HMI-115

      much-hyped research compound targeting prolactin receptor in scalp

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      community I can’t believe it’s actually coming back

      in Progress Pictures  902 upvotes 2 weeks ago
      A user experienced positive hair regrowth after 9 months using Dutasteride (0.5mg daily) and oral Minoxidil (2.5mg daily) without side effects and plans a hair transplant. They noted the cost-effectiveness of oral Minoxidil and discussed hair loss treatments, including Finasteride.

      community Can microneedling damage existing hair?

      in Microneedling  9 upvotes 3 months ago
      Microneedling is unlikely to damage existing hair if done with a device using a smaller needle count, like a 9-needle cartridge, and a stamping motion. Hair follicles are deeper than the typical needle penetration depth.

      community Hair transplant result, hair+confidence back 👍

      in Progress Pictures  295 upvotes 3 years ago
      A user who got a hair transplant and gave their experience with it, including how the donor area recovered quickly and the potential risks of getting a hair transplant at a young age. Other users discussed bleaching and dyeing transplanted hair, as well as asking about the clinic where the procedure was done.

      community Peppermint oil for Hair Thickness

      in Research/Science  2 upvotes 1 week ago
      Peppermint oil may increase hair thickness more effectively than minoxidil, but its effects are mostly studied in animals. Users report mixed results, with some seeing no regrowth and others noting slight improvements when combined with other treatments.