PP405 is a topical gel being tested for hair regrowth in adults with androgenetic alopecia. Volunteers aged 18-55 are needed for a 16-week trial in several US locations.
Researching and developing an effective local antagonist to block the androgen receptors for hair loss, as opposed to using DHT synthesis inhibitors that lower serum DHT levels. Several treatments such as CosmeRNA and Pyrilutamide are currently in development or undergoing trials.
A user is seeking hair loss treatments without using systemic DHT blockers like finasteride due to side effects. Suggestions include clascoterone (not FDA approved), pyrilutamide, RU58841, and low-dose topical finasteride, with a recommendation to consult a doctor.
A 22-year-old male uses dutasteride, a serum with 10% minoxidil and 0.5% finasteride, and microneedling for diffuse androgenetic alopecia. Progress pictures show changes from July 2025 to February 2026.
The user experiencing diffuse hair loss is using various treatments including RU58841, finasteride, minoxidil with tretinoin, anti-hair loss shampoo, and microneedling, and is considering adding peptides TB500, BPC157, and GHK-Cu. They have low growth hormone levels and are questioning its impact on hair loss, while another user suggests androgenic alopecia and androgens are likely the main cause of hair loss.
PP405 might make minoxidil unnecessary, but finasteride or other 5AR inhibitors may still be needed. PP405 is expected to be expensive and not available until at least 2028, with limited information on its effectiveness.
Hmi115, a prolactin receptor blocker, showed promise for hair growth, but results from Phase 2 trials have not been published. ABS-201, an AI-based analog, is expected to begin trials in December 2025, while commercialization of treatments like PP-405 is anticipated around 2027.
The user is discussing their hair loss treatment stack, which includes CB-03-01, Fluridil, Alfatradiol, Cosmerna, microneedling, and Stemoxydine. They have seen some new hair growth but wish they could use finasteride.
Exploring different treatments for hair loss, such as cosmeRNA and HMI-115 which are small interference messenger RNA that inhibits the DHT receptor and an antibody that binds to the prolactin (PRL) receptor respectively; and researching mechanism and environment of hyperresponders.
A quercetin-encapsulated and polydopamine-integrated nanosystem (PDA@QLipo) shows promise for treating androgenetic alopecia by reshaping the perifollicular microenvironment, outperforming minoxidil in hair regeneration. The nanosystem promotes cell proliferation, hair follicle renewal, and recovery by scavenging reactive oxygen species and enhancing neovascularity.
Microneedling may not significantly help those who don't respond to topical minoxidil, and some users suggest trying oral treatments like oral minoxidil or finasteride. Concerns about scarring and side effects are noted, with mixed experiences reported.
A 16-year-old is experiencing hair loss and is using minoxidil, finasteride, and plans to add RU58841, while considering other treatments like MK-677 and microneedling. Concerns are raised about the potential impact of these treatments on puberty and development.
Post Finasteride Syndrome (PFS) may result from epigenetic changes and gut microbiota alterations. Supplementing with Allopregnanolone might protect against these adverse effects.
Treatments for hair loss, including the effectiveness and safety of Pyrilutamide compared to RU58841; experiences using both medications with varying results; and recommendations to try Pyrilutamide instead of RU58841.
The FDA will now require only one clinical trial for drug approval, potentially speeding up the release of hair loss treatments like PP405. Pelage is expected to present full results of PP405 Phase 2a trials and move to Phase III in mid-2026.
Various hair growth treatments were discussed, including microneedling, bimatoprost, setipiprant, stemoxydine, PGE2, CB-03-01, WNT Beta-Catenin upregulators, KY19382, topical estrogen, IGF-1, GH, MK-677, oral castor oil, fisetin, resveratrol, cetrizine, and lactic acid. Users shared experiences and sources for these treatments, with some expressing interest in topical solutions and others noting the lack of FDA approval or scientific evidence for certain options.
The conversation is about a user seeking advice on adding GHK-Cu to RU58841 for hair loss treatment, while already using oral minoxidil, dutasteride, ketoconazole shampoo, and considering LLLT. They are unsure about the concentration and carrier solution for GHK-Cu.
KX-826 (Pyrilutamide) being tested in the US for hair loss treatment and that they have found enough people to participate in phase II clinical trials. Other treatments discussed are Minoxidil, finasteride, and RU58841.
Minoxidil, finasteride, and RU58841 are discussed as treatments for hair loss, with excitement around a new drug, PP405, and a reformulated oral minoxidil in trials. Concerns about cost, side effects, and long-term use are also mentioned.
The conversation discusses potential advancements in two hair loss drugs, KX-826 and GT20029, and the interest in whether transitioning from oral finasteride to these drugs would maintain hair growth. One reply expresses skepticism about the compounds' representation.
A user stopped using RU58841 after discovering their girlfriend's unplanned pregnancy, expressing concern about potential harm to the baby. Others advised consulting a doctor, waiting for health scans, and considering switching to oral finasteride or natural supplements like saw palmetto.
The conversation discusses a hair loss treatment formulation containing cyclosporin, minoxidil, and tacrolimus, and mentions ongoing research on hair color reversal. The treatment showed high efficacy in restoring hair color in trials with 40 to 50 people.
The user plans to stop using finasteride due to side effects but will continue using minoxidil. They are concerned about hair regrowth without finasteride.
GHK-Cu injections led to unexpected temple hair growth for someone who had been using minoxidil and finasteride for over a decade. The user plans to continue using GHK-Cu and experiment with a DIY AHK-Cu serum.
Injectable GHK-CU and BPC157 were discussed for hair loss, but users did not notice significant hair changes. BPC157 was noted to help with shoulder issues.
Hair loss treatments, specifically about the effectiveness of RU58841 compared to Pyrilutamide. Molecular weights and side effects were discussed in terms of efficacy and cost-effectiveness.