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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.

Pyrilutamide is being discussed as an alternative for those who can't use finasteride, but users report it may be ineffective at low concentrations. Some users are combining it with minoxidil, microneedling, and other treatments, but results vary.

The user started a hair care routine using 0.5mg finasteride daily, 2ml of 5% minoxidil, and 4.5mg of cetirizine topically to address hair loss. They plan to provide updates and are also interested in cetirizine's potential to reduce scalp itching and redness due to its anti-inflammatory properties.

Setipiprant and Fevipiprant are questioned for their effectiveness in hair maintenance, with skepticism due to lack of convincing results beyond vellus hair growth. The user is satisfied with Minoxidil and Finasteride but is curious about the potential of DP2 inhibitors.

PP405 shows promising results for hair growth, potentially outperforming finasteride without side effects like erectile dysfunction. Users discuss using treatments like minoxidil, pyrilutamide, nizoral, and alfatradiol while waiting for PP405's availability.

The post is about whether there is any additional benefit to using alfatradiol or other estrogen treatments for hair loss if someone is already using finasteride, dutasteride, or an androgen receptor inhibitor like RU58841, pyrithione zinc, or fluridil.

RU58841 is used for hair loss, with some users reporting decreased shedding and preserved hairlines. Concerns about safety and side effects like heart issues are noted, and some combine it with finasteride and minoxidil for better results.

The experiences of users who have used RU58841 to treat hair loss, including both positive and negative effects. Some side effects reported include chest pain, joint pain in the hands, tinnitus, and increased heartbeat.

Fluridil may decrease the number of androgen receptors in hair follicles by up to 95%. This suggests a different action mechanism from other non-steroidal antiandrogens like RU58841, indicating they might be used together.

The conversation discusses adding either RU58841 or pyrilutamide to a hair loss treatment regimen that already includes oral dutasteride and oral minoxidil. RU58841 is considered the stronger anti-androgen but may have more side effects.

The user started using Pyrilutamide 5% for hair loss and has not experienced side effects after two days. They previously had side effects from Fluridil and topical Minoxidil 5%, and their hair continued thinning with topical Spironolactone.

IGFBP‐rP1 shows potential for treating androgenic alopecia by influencing hair cycle transitions. Increasing IGF-1 levels may have similar effects to Minoxidil and 5-AR inhibitors in reducing hair loss.

RU58841 is discussed as an effective hair loss treatment, with some users experiencing regrowth and reduced shedding, but concerns about safety and sourcing are raised. Users advise against purchasing from Amazon, recommending reputable sources and cautioning about potential side effects like cardiovascular issues.

People are discussing the anticipated release of PP405 phase 2a results, expected by the end of March, with some skepticism about its effectiveness. There is cautious optimism due to past experiences with similar treatments like Breezula, despite concerns about the lack of presentation at the AAD 2026 conference.

The post and conversation are about the high cost and skepticism surrounding pyrilutamide as a hair loss treatment, with comparisons to minoxidil, finasteride, and RU58841. The original poster defends pyrilutamide's effectiveness and criticizes others for dismissing it without proper understanding.

The user discusses using Follics FR5, FR10, and FR15, which combine Minoxidil, Adenosine, Procapil, Azelaic acid, and Procyanidin B2, to address hair loss. They have previously used Minoxidil, Finasteride, and Dutasteride with varying success.

A 28 year old using a hair loss prevention protocol to restore thinning hair, which includes finasteride, dutasteride, minoxidil, stemoxydine, alopecin, nizoral shampoo and microneedling; the user is now adding pyrilutamide solution to the regimen with the hope of improving their results. RU58841 was also ordered but not yet used.

The conversation is about using pyrilutamide and RU58841 as topical solutions to prevent hair loss. Pyrilutamide is considered safer but less potent than RU58841, which some users find effective despite potential side effects like heart palpitations.

The conversation is about adding a low dose of pyrilutamide to a hair loss treatment regimen. Specific treatments mentioned include Minoxidil, finasteride, and RU58841.

The conversation is about the long-term safety trial results for pyrilutamide, which are expected soon. Treatments mentioned include Minoxidil, finasteride, and RU58841.

The user is frustrated with their dermatologist's refusal to prescribe oral Minoxidil and Finasteride for hair loss, despite starting Finasteride recently. They consider discussing oral Minoxidil with their primary care doctor and exploring telehealth options.

Pyrilutimide and CB-03-01, two treatments for hair loss, have similar clinical trial results despite different binding affinities to androgen receptors. Factors other than binding affinity, like the time a drug stays bound to the receptor, may influence their effectiveness.

The conversation discusses using RU58841, a research chemical, for hair loss treatment. The user plans to use it due to side effects from finasteride and minoxidil, despite skepticism about its effectiveness and lack of FDA approval.

A 30-year-old man experienced significant hair loss after starting testosterone replacement therapy (TRT), which did not improve with daily finasteride and minoxidil. He is considering restarting TRT and is seeking advice on using pyrilutamide or RU58841 to prevent further hair loss.

The conversation discusses the use of Procapil 5% for hair loss. Users inquire about its effectiveness and share experiences with treatments like Minoxidil, Finasteride, and RU58841.

Dutasteride and finasteride have similar risk profiles despite Dutasteride blocking more types of 5AR in the brain. Some users report no mood issues with either drug, and it is suggested that Dutasteride's larger molecular size may limit its ability to cross the blood-brain barrier.

Results for PP405 are expected next year, with concerns about its pricing and potential black market availability. Some users believe it may be slightly more effective than finasteride and dutasteride, and combining it with treatments like minoxidil and microneedling could be beneficial.

PP405 is seen as promising but uncertain, with users advised to continue using existing treatments like minoxidil and finasteride. Concerns include its cost, availability, and interaction with hair transplants, while some hope it could complement current treatments.

Alfatradiol is used by some for hair loss, often alongside treatments like finasteride, RU58841, and minoxidil, but its effectiveness is unclear. Some users report no significant improvement, while others note reduced sebum production but experience side effects like gallbladder pain.

The user shared their 5-year progress using finasteride and topical minoxidil for hair growth, noting initial success but recent thinning and side effects. They plan to switch to dutasteride and oral minoxidil, addressing low iron levels and monitoring potential side effects.