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    Did you mean Prostaglandin D2 Receptor?
    GlossaryProstaglandin D2 Receptor

    protein on cell surfaces that binds prostaglandin D2, affecting hair growth

    The Prostaglandin D2 Receptor (often abbreviated as PTGDR or PTGDR2) is a protein found on the surface of certain cells that binds to prostaglandin D2, a type of lipid compound involved in various physiological processes. This receptor plays a significant role in inflammatory responses and has been linked to conditions like asthma and hair loss, particularly androgenetic alopecia, where its activation can inhibit hair growth.

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      community Doubts about castor oil

       5 upvotes 7 years ago
      Castor oil's effectiveness for hair growth is debated, with concerns about its impact on skin health and prostaglandin levels. Some users suggest combining it with coconut oil and using it alongside finasteride for better results, while others recommend sticking to proven synthetic treatments.

      community How far are we from a treatment better than finasteride?

      in Treatment  129 upvotes 1 year ago
      Dutasteride is more effective than finasteride for hair loss as it blocks more of the enzyme causing hair loss. New treatments like stem cell therapies and alternatives to minoxidil are being explored, but major advancements are still years away.

      community Castor Oil - Yay or Nay?

      in Product  8 upvotes 5 years ago
      The conversation discusses the potential benefits of castor oil for hair thickening, with one user noting it may increase prostaglandin E2 and decrease PGD2. The original poster plans to take 1-2ml orally daily.

      community Painkillers May Block Minoxidil

      in Research/Science  15 upvotes 1 year ago
      Painkillers like Aspirin may reduce Minoxidil's effectiveness by inhibiting the enzyme PGHS-1, which is crucial for hair growth. Using NSAIDs that inhibit COX-2 or combining Minoxidil with PGF2/E2 analogues or retinoids may enhance its efficacy.

      community You will lose hair if your prostaglandins aren't in balance

      in Research/Science  56 upvotes 1 year ago
      Prostaglandin balance affects hair loss, particularly in conditions like Lichen Planopilaris, where an imbalance can lead to hair follicle damage. Treatments mentioned include prostaglandin analogs and Pioglitazone HCL, with a focus on maintaining prostaglandin equilibrium for potential hair regrowth.

      community DLQ01: A Better "Minoxidil" PGF2a synthetic analogue.

      in Research/Science  3 upvotes 1 year ago
      DLQ01, a prostaglandin F2α analog, shows promise for hair growth by directly stimulating PGE2/PGF receptors without needing conversion, and can be combined with minoxidil and retinoids like tretinoin for enhanced effectiveness. Minoxidil's efficacy may be reduced by COX-1 inhibitors, but using prostaglandin analogs like Latanoprost or Bimatoprost can help maintain its effectiveness.

      community ISO a topical without minoxidil

      in Finasteride/Dutasteride  3 upvotes 3 months ago
      A user seeks a topical hair loss treatment without minoxidil, considering options like finasteride, dutasteride, caffeine, tretinoin, or prostaglandin analogues. Recommendations include products like Strut, Maximus, Zeuss, and custom formulas from compounding pharmacies.

      community Mechanism of Action these drugs re-grow hair?

      in Technology  2 upvotes 2 years ago
      Minoxidil, finasteride, and RU58841 promote hair growth by different mechanisms, with minoxidil and prostaglandin E1 being specifically mentioned. Corticosteroids can also cause hair growth.

      community Zyrtec (Cetirizine) antihistamine for hair growth compared to Minoxidil NIH study

      in Minoxidil  35 upvotes 3 years ago
      The conversation discusses the potential of topical cetirizine (Zyrtec) for hair growth in comparison to minoxidil, noting cetirizine's ability to reduce prostaglandin D2, which inhibits hair growth. Users share mixed experiences with cetirizine for allergies and scalp health, and there's a mention of the risk of dementia with long-term antihistamine use.

      community Need supplemental products in addition to oral minoxidil and oral dutasteride

      in Product  1 upvotes 6 months ago
      The user has been using oral minoxidil and dutasteride for hair loss without success and is considering adding topical 17α-estradiol, Pyrilutamide, Clascoterone, or cetirizine. They have confirmed low serum DHT levels and are exploring additional treatments due to genetic sensitivity to DHT and prostaglandin D2.

      community Can I Put Minoxidil On My Eyelashes?

      in Minoxidil 1 month ago
      Applying minoxidil to eyelashes is unsafe due to potential eye irritation and chemical burns. Safer alternatives include peptide serums, castor oil, or lash lifts/extensions.

      community Stumbled on some research

      in Research/Science  6 upvotes 5 years ago
      Elevated PGD2 levels in bald scalp tissue may contribute to hair loss, and treatments like castor oil, finasteride, and minoxidil are discussed as potential solutions. Some users explore alternatives like oral castor oil and cetirizine for those who cannot use finasteride.

      community Compounded topicals

      in Female  6 upvotes 5 years ago
      BionicBell discussed using Bimatoprost, a medication typically for eyelash growth, for hair loss and mentioned a compounding pharmacy that can mix it with other ingredients like minoxidil and finasteride. They are seeking advice on using topical finasteride for female pattern baldness and are considering a custom foam combination to maximize hair growth results.

      community Autoimmune issue?

      in Question  2 upvotes 8 years ago
      The user experienced severe hair loss, itchy scalp, and skin issues after trying no-shampoo, and wonders if it's male pattern baldness or an immune issue. They have a history of eczema, dermatitis, and jock itch, and have tried various treatments like coconut oil, peppermint, pumpkin seed, and onion.

      community Latanoprost- an effective medication

      in Treatment  6 upvotes 1 month ago
      Latanoprost is discussed as a potential hair loss treatment, noted for its synergy with minoxidil and 5-AR inhibitors, but concerns include its effectiveness on scalp hair, cost, and potential skin darkening. Some users express interest in trying latanoprost or bimatoprost despite limited real-world evidence.

      community Hey med experts explain this please??

      in Research/Science  6 upvotes 6 months ago
      Finasteride, dutasteride, saw palmetto, caffeine, spironolactone, acetyltetrapeptides, tea tree oil, hydrocortisone, zinc pyrithione, latanoprost, melatonin, marine protein supplements, PRP, microneedling, and valproate are discussed as treatments for hair loss. DHT reduction and inflammation control are key strategies.

      community Min/Fin topical prescription also contains Latanoprost?

      in Treatment  3 upvotes 1 year ago
      A user discusses a topical prescription for hair regrowth containing Minoxidil, Finasteride, and Latanoprost, noting Latanoprost's side effect of promoting eyelash and eyebrow growth. Others share experiences and information about Latanoprost, highlighting its origins as a glaucoma drug and potential side effects.

      community All Drugs in Clinical Trials in 2023

      in Research/Science  70 upvotes 3 years ago
      12 companies having drugs or therapies in clinical trials during 2023, with various molecules and phases of trial; the probability that some may fail; and progress being made in the field.
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