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RU58841, an anti-androgenic compound, showed early promise for treating alopecia but faced challenges after its patent in 1997. Despite advancing to Phase II trials, safety concerns and financial struggles led Aventis to abandon its development. Proskelia, which later merged into ProStrakan, couldn't prioritize the drug, leading to its eventual stagnation and failure to reach the market.

Female considering adding topical anti-androgen, seeks advice on RU58841 or pyrilutamid's binding affinity compared to spironolactone.

PP405 shows initial promise for treating androgenetic alopecia, with safety confirmed in early trials, but skepticism remains due to limited data. Further trials are needed to determine its true efficacy and potential market impact.

The user is experiencing irritation from using PG with RU58841 and is seeking alternative solutions like K&B in the UK. They report redness, itchiness, and flaky skin from the current treatment.

PP405, a topical LDH inhibitor, has shown to stimulate hair follicle stem cell proliferation in humans with moderate hair loss. They are advancing to more detailed trials this year.

Two Chinese suppliers provided legitimate RU58841, confirmed through a free drug testing service. The vendors were Shaanxi Greenyo Biotech and Lyphar, found on Made-in-China.

The relative strength of Pyrilutamide compared to RU58841 in terms of androgen receptor binding affinity. It has been noted that Pyrilutamide is 4x stronger than RU58841, with a higher binding affinity than DHT itself.

PP405 shows promise in hair loss treatment, but stem cell therapy using adipose-derived stem cells and ATP also successfully reversed androgenetic alopecia in mice. Stem cell therapy is costly, and some doubt the effectiveness of PP405 based on press releases.

Lactobacillus reuteri 6475 is being used by a person who reports healthier hair after one month, despite initial shedding. The discussion includes speculation about its effects on gut bacteria and scalp inflammation.

An arthritis drug, baricitinib, is discussed as a potential treatment for autoimmune alopecia, not androgenetic alopecia. Ritlecitinib is also mentioned as a possible treatment for scarring alopecia.

The conversation discusses the best carrier for RU58841, comparing Ethanol and PEG400. The user seeks advice on which carrier is more effective.

The user is seeking help with using Ell-Cranell for hair loss treatment. They are unsure about the correct application method and dosage. They also inquire about combining microneedling with topical alfatradiol and question a study that referred to alfatradiol as a hair growth inhibitor in male mice.

Some users of RU-58841 report cardiovascular symptoms like heart palpitations and chest tightness, which may be linked to its metabolites causing lung disease. The safety of RU-58841 is uncertain due to lack of long-term data and concerns about product purity, especially from gray market sources.

The conversation discusses the mechanism of action of alfatradiol (17 alpha estradiol) in treating hair loss. It explores theories that it either inhibits 5 alpha reductase to prevent T->DHT conversion or aromatizes scalp T into 17-alpha-estradiol to save hair.

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.

User discusses Alfatradiol (17a-Estradiol) as a potential hair loss treatment with mixed results. Concerns include low dosage, receptor theory, and possible increased aromatase activity on scalp.

The conversation is about using RF microneedling with ExoHealer, along with finasteride and minoxidil, to improve hair thickness and reduce shedding. The user reports noticeable improvements in scalp texture and oiliness, with plans to consider stem cell treatments in the future.

A user is seeking a trusted supplier for RU58841 in the UK, expressing doubts about their current source, rudirect, and considering Anagenic and receptorchem. They are asking for recommendations for other suppliers.

The conversation is about considering pyrilutamide 1% as an alternative treatment for hair loss due to intolerance to 5-alpha reductase inhibitors. Some users suggest it might be effective, while others view it as a temporary solution.

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.

User asks if HMI 115 hasn't done phase 1 for AGA in humans. Conversation includes treatments Min, Fin, and RU.

The conversation discusses concerns that Anagenic's version of GT20029 might not be as effective or safe as Kintor's, with comparisons to issues faced by pyrilutamide. The chemical structure of the drug has been published.

A 15% discount is offered on hair research products like RU58841 and TEMPOL at Chemyo.com. The legality of selling these compounds is confirmed by the seller.

Pelage Pharmaceuticals announced positive Phase 2a trial results for PP405 in hair loss therapy. The conversation discusses the delay in publishing full results and the need for further trials and approvals.

A user with alopecia totalis, borderline universalis, seeks advice on getting into a Xeljanz trial or appealing insurance for coverage. They experienced significant hair regrowth but are now seeing hair loss again and want to try Xeljanz.

PP405 is a safer alternative to JXL069 for hair loss treatment because it penetrates the skin effectively and degrades in the blood, avoiding systemic toxicity. JXL069, when forced into the body, can cause dangerous side effects like lactic acidosis due to its inability to degrade safely.

Hair loss treatments discussed include Minoxidil, Finasteride, and RU58841. HMI-115, a monoclonal antibody drug, is in phase 1 and 2 trials for different conditions, but its availability on the gray market is unlikely due to high production costs.

RU58841 helped reduce scalp itching for some users within a week, while others experienced immediate relief. Some users reported initial irritation from the solution, possibly due to the carrier used.

PP405, a potential hair loss treatment, is facing delays in releasing Phase 2 results, causing frustration among users who compare it to past failed treatments. Despite skepticism, some remain hopeful about PP405's future, while others discuss alternative treatments like Clascoterone and its expected market release.

User experienced reduced hair loss with 15mg RU in Serioxyl but had concerning chest pain. Others suggested consulting a doctor or lowering the dose.