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    GlossaryIC50 (Inhibitory Concentration 50)

    concentration needed to inhibit a biological process by 50%

    IC50, or Half Maximal Inhibitory Concentration, is a measure used in pharmacology to indicate how much of a substance (like a drug or inhibitor) is needed to inhibit a biological process or the activity of a target (such as an enzyme or cell receptor) by 50%. This value helps researchers understand the potency of a compound, with a lower IC50 indicating a more potent inhibitor.

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      FCE 28260: A Forgotten 5α-Reductase Inhibitor

      community FCE 28260: A Forgotten 5α-Reductase Inhibitor

      in Research  330 upvotes 2 months ago
      FCE 28260 (PNU 156765), an under-explored 5α-reductase inhibitor, showcases promising results in research by Giudici et al., outperforming well-known treatments like Finasteride in reducing the conversion of testosterone to DHT. Its superior efficacy, demonstrated through lower IC50 values in both natural and human recombinant enzyme studies, suggests it could offer more effective management of DHT-related conditions. Additionally, its lower molecular weight hints at better potential for topical application, potentially offering advantages in treating conditions such as androgenic alopecia. Despite its potential, it has not advanced in development, possibly due to financial limitations, leaving its therapeutic prospects and side effect profile largely unexplored.

      community DHT and 5AR respect post, it's importance within the brain

      in Research/Science  111 upvotes 8 months ago
      The conversation discusses whether to use finasteride for hair loss, considering its role in inhibiting DHT and 5AR, which can affect brain function and mood. Some users report anxiety and depression from finasteride, while others do not experience these side effects and emphasize the importance of DHT for brain and prostate health.

      community Physician here AMA – 30M oral Fin 1-1.25 mg daily

      in Update  47 upvotes 2 years ago
      Hair loss treatments, specifically the use of finasteride, microneedling and potentially oral minoxidil. People discussed their experiences with finasteride, its effects on sexual behaviors, as well as potential solutions such as tadalafil or using other growth factor signal peptides for hope in curing male pattern baldness.

      community Fats on your Head to Stop Hair Loss?

      in Research/Science  137 upvotes 8 months ago
      The conversation discusses the potential of long-chain unsaturated fatty acids, like oleic and linoleic acid, as an additional treatment for hair loss, which may inhibit the enzyme responsible for converting testosterone to DHT and promote hair growth. Users humorously suggest using oils topically and discuss other hair loss treatments, but the main focus is on the science behind fatty acids and their role in hair health.

      community HLT Megathread on HMI-115 (key takeaways in comments)

      in Research/Science  39 upvotes 1 year ago
      HMI-115, a newly discovered hair loss treatment that could potentially be effective for those with diffuse thinning and telogen effluvium. It is based on prolactin receptor antagonist signaling and has already undergone Phase I trials in women, with potential commercialization by 2027.

      community Why I really believe the tension theory is the cause of MPB

      in Research/Science  70 upvotes 3 years ago
      The conversation discusses the tension theory as a cause of male pattern baldness (MPB), suggesting that scalp tension and reduced subcutaneous fat layer contribute to hair loss. Treatments mentioned include Minoxidil, finasteride, microneedling, scalp massages, and Botox.

      community Zix + Topical Fin : Blood Test Before/After, AMA and suggestions

      in Treatment  47 upvotes 4 years ago
      A user's plan to use Zix and topical finasteride (5AR inhibitors) for hair loss, followed by blood testing before/after. The user has suggested creating a fund to cover part of the cost of their blood tests. Replies to their post discuss the effectiveness of the treatments.

      community The Worst Hair Loss Condition You (MAY) have: LPP

      in Research/Science  43 upvotes 2 months ago
      Lichen Planopilaris (LPP) is an autoimmune condition causing permanent hair loss and fibrosis, often misdiagnosed. Treatments include pioglitazone, topical corticosteroids, anti-inflammatory medication, and Jak inhibitors.

      community What's the deal with Zinc and DHT?

      in Chat  47 upvotes 5 months ago
      The conversation discusses the conflicting information about Zinc's effect on DHT and its role in hair loss. It mentions that Zinc can act as a 5AR inhibitor at high doses but may increase DHT if taken to correct a deficiency, and highlights the importance of nutritional balance for hair health.

      community We need to talk about DHT itch

      in Treatment 2 years ago
      DHT Itch and its link to balding, with various treatments such as finasteride being discussed. Members shared their experiences of scalp itch before and after taking 5AR inhibitors, and potential underlying causes such as seborrheic dermatitis were discussed.

      community Serenoa Repens (saw palmetto) + plus biotin

      in Chat  5 upvotes 1 year ago
      A user is using minoxidil for hair loss and considering adding finasteride but their dermatologist advised waiting to see if minoxidil works alone. They are thinking about taking saw palmetto (serenoa repens) and biotin as alternatives and are asking for others' experiences and potential side effects.

      community Does anyone have experience with topical dut?

      in Finasteride/Dutasteride  8 upvotes 2 years ago
      The user has been using minoxidil for hair loss and is considering trying a compounded topical treatment with 0.1% dutasteride, minoxidil, tretinoin, collagen, and silicon, as recommended by a trichologist. They learned that dutasteride might be more effective than finasteride and are seeking opinions on the use of topical dutasteride.

      community To everyone who cant use FIN and doesnt want to use RU

      in Treatment  33 upvotes 2 months ago
      A new hair loss treatment, KX-826, is being discussed as a stronger and safer alternative to RU58841 and finasteride. Opinions are mixed, with some users skeptical about its effectiveness and others considering it as part of their regimen.

      community How much do you pay a Month for your Medication?

      in Treatment  6 upvotes 2 months ago
      The user spends around 200€ monthly on hair loss treatments, including Kx826, Alfatradiol, Minoxidil, Nizoral Shampoo, Stemoxydine, Tretinoin, and a Dermastamp. The total cost is approximately 220$.

      community Testosterone and hair loss seeming irrelevance

      in Research/Science  81 upvotes 1 year ago
      The conversation is about the role of testosterone in hair loss and the effectiveness of different treatments. The conclusion is that DHT is the main culprit for hair loss, and finasteride has been proven to work long-term in maintaining and regrowing hair. Testosterone may have a minor effect, but it is not the primary cause of hair loss.
      Topical Dutasteride - Non-Hormonal, Side Effect Free 5ARI?

      community Topical Dutasteride - Non-Hormonal, Side Effect Free 5ARI?

      in Treatments  372 upvotes 2 months ago
      Topical dutasteride is suggested as a low side-effect treatment for hair loss, with a proposed dose of 0.025% 1ml/day. It is considered better than finasteride due to its even inhibition of DHT isoforms and lower systemic absorption.

      community DHT/Testosterone levels in scalp Fin VS Dut.

      in Finasteride/Dutasteride  60 upvotes 3 months ago
      Dutasteride raises scalp testosterone by 99%, which may not be ideal for those sensitive to all androgens. Some argue finasteride's balancing act might be better, while others believe dutasteride is superior for hair regrowth.

      community Quit vaping/smoking = 80% less loss

      in Research/Science  235 upvotes 7 months ago
      Quitting vaping significantly reduced hair loss for a user who was a heavy vaper and also taking finasteride. Some participants suggest nicotine's vasoconstrictive properties may worsen hair loss, while others share personal anecdotes of hair improvement after quitting smoking or vaping.

      community If RU58841 is such an effective anti androgen

      in Research/Science  46 upvotes 10 months ago
      RU58841 is discussed as a topical anti-androgen for hair loss, but its effectiveness and safety are not well-documented, leading to mixed opinions and experiences among users. Some combine it with finasteride, but concerns about side effects and lack of FDA approval limit its popularity.