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    GlossaryPolydispersity Index

    measure of molecular size distribution in a polymer sample

    The Polydispersity Index (PDI) is a measure of the distribution of molecular mass in a given polymer sample. It indicates how uniform or varied the sizes of the molecules are within the sample. A PDI value close to 1 suggests a uniform molecular size, while higher values indicate a broader range of molecular sizes. This term is particularly important in fields like materials science and biochemistry, where the consistency of molecular size can impact the properties and behavior of materials or biological molecules.

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      community Diffuse thinning hair texture changes

      in Chat  1 upvotes 1 year ago
      A user experiencing diffuse thinning since age 18 describes their hair as unhealthy, dry, thin, and hard, with texture changes cycling between good and bad every few weeks. They are not on any medication, only taking vitamins and supplements.

      community Young guys read this

       68 upvotes 7 years ago
      A user's experience with dealing with hair loss, and the advice that was shared by other users to cope with it. Suggested treatments included shaving their head, using medications such as finasteride, minoxidil, and dutasteride, as well as dermarolling.

      community Ashton Kutcher talking about Avodart/Dutasteride on national television

       109 upvotes 6 years ago
      How actor Ashton Kutcher used Dutasteride (Avodart) to treat his hair loss at age 25, but stopped taking it due to potential side effects when he wanted to have kids; and the discussion of various treatments for hair loss such as finasteride, minoxidil, and RU58841.

      community I wish we didn’t have to live with this….

       61 upvotes 6 years ago
      The struggles of hair loss at a young age and available treatments, such as medication (Finasteride, Minoxidil, Dutasteride, Derma Rolling) and potential options for hair systems or cloning in Japan. People discussed their own experiences with trying to cope with the emotional aspects of this condition.