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PP405 increased hair density by 20% in 31% of participants, but results are considered underwhelming. Minoxidil and finasteride are seen as more effective treatments.

J. Hewitt plans to trial hair multiplication in Japan by the end of 2019. The technique was developed by German researchers at the University of Berlin and formed the company "TissUse."

The user shares their hair growth progress using topical and sublingual minoxidil, dutasteride, hormone replacement therapy, and a laser comb. They report thicker hair and reduced hairline shedding, seeking advice for further thickening.

User started Finasteride for hair loss and uses Toppik to cover bald spots. They wonder if Toppik's keratin fibers will block follicles and affect hair regrowth.

A 23-year-old user shares their hair regrowth journey, questioning if genetics or other factors are at play. They use Rogaine, finasteride, vitamin B12, biotin, Thera M Plus, and derma stamping, and seek advice on their regimen and hair growth patterns.

Hair thickness can fluctuate while on finasteride, possibly due to product overuse or other factors like health or hormones. The user experienced a significant thinning in November 2025 but noticed improvement since then.

The user is using a regimen of dutasteride, oral and topical minoxidil, Nutrafol, and keto shampoo for hair regrowth, with plans for a hair transplant at the one-year mark. Users suggest adjusting treatments due to scalp inflammation and discuss the potential addition of RU58841, while noting impressive results so far.

A user reported that after experiencing hair thinning, they started using finasteride in 2024 and later began GHK-Cu peptide injections in March 2026, which they believe stopped their hair loss and made their hair feel thicker. The user shared their experience despite receiving criticism for not solely endorsing finasteride.

A user shares progress on hair thickening using finasteride, minoxidil, RU58841, and dermastamping. Another user notes slow but ongoing improvement with a similar treatment routine.

A 42-year-old user shared a 4-month update on their hair regrowth using a "nuclear stack" including oral and topical minoxidil, dutasteride, RU58841, micro-needling, keto shampoo, saw palmetto, biotin, multivitamins, scalp massages, and inversion table. They reported significant progress with minimal side effects and plan to continue the routine.

A user has been using Topical Finasteride and Minoxidil for 10 months but continues to shed over 200 hairs daily, with minimal improvement. They are seeking advice on whether increasing the finasteride dose might help.

The conversation discusses using peptides BPC-157 and TB-500, combined with microneedling, to potentially enhance hair regrowth. The user plans to try BPC-157 due to its lower cost and reports of hair growth, despite limited human trials and concerns about side effects from other treatments like minoxidil and finasteride.

The user has been using Minoxidil for 2 months and Finasteride for 1 month to address hair loss, particularly at the temples. They are questioning whether the new small hairs are facial hairs or new scalp hair.

The user experienced regrowth and stabilization in hair density using finasteride, minoxidil, a derma roller, and an LLLT helmet, but noticed a recent decline in hair quality. They only take finasteride orally and are unsure about the effectiveness of the LLLT device.

Using high doses of testosterone with RU58841 to create an androgen-free environment for hair regrowth is suggested, but concerns about heart health and the effectiveness of this approach are raised. Alternatives like topical estrogen, progesterone, and other treatments like finasteride and dutasteride are discussed.

The user experienced hair regrowth with finasteride and minoxidil but faced shedding after stopping the treatment. They resumed the treatment and used Toppik hair fibers to mask hair thinning during the shedding phase.

Small hairs around the hairline may regrow with continued use of minoxidil, finasteride, and ketoconazole. The user is hopeful about hairline improvement.

PP405 is a potential hair loss treatment that inhibits mitochondrial pyruvate carriers, increasing lactate dehydrogenase activity and stimulating hair follicle stem cells. In a phase 1 trial, 31% of participants showed over 20% hair density increase with PP405 treatment.

The conversation discusses the appearance of new baby hairs with treatments like castor oil, finasteride, minoxidil, and dermarolling. Users note that baby hairs often go unreported after initial excitement, with some seeing growth and others losing interest in updates.

A 78-year-old man regrew hair after suffering burns, suggesting that injury-induced healing processes might trigger hair growth. Microneedling and other treatments like minoxidil and finasteride are discussed as potential methods to stimulate similar regrowth.

A woman underwent a hair transplant in Istanbul, receiving 3,000 grafts, and is pleased with the natural-looking results one year later. The experience included a 5-star hotel stay, PRP session, laser treatment, and detailed aftercare, leading to improved hair density and confidence.

GT20029 showed significant hair growth and safety in phase II trials, with no adverse sexual events. Users are hopeful but concerned about future costs and systemic effects.

Estrogen injections significantly improved hair growth, particularly on the crown, after stopping finasteride. Monotherapy with estrogen led to hairline improvement, but also caused sterility and potential feminization effects.

An 18-year-old is using a high-dose hair loss treatment regimen including finasteride, minoxidil, dutasteride, and plans to add RU58841 and bimatoprost, despite warnings from others about the risks. The user is determined to reverse hair loss but acknowledges the potential dangers and does not recommend others follow their approach.

A 23-year-old is experiencing hair loss, primarily at the top middle of the head, and is considering finasteride but is hesitant due to potential side effects. Other users share their positive experiences with finasteride, suggesting it is worth trying, while also discussing the importance of researching and monitoring for any side effects.

A user started finasteride a month ago and is unsure if small hairs are miniaturized or new growth. Replies include a joke and a deleted comment.

The user experienced subtle hair growth improvements using finasteride, dutasteride, and minoxidil over nearly three years, with notable progress at the temples. The front hairline shows quicker regrowth cycles, but the vertex and crown remain unchanged.

A user underwent a second hair transplant for increased density and to address hair loss in the crown area, with 3,800 grafts at a cost of 2,200 euros at Estepalace, including additional services. Some commenters discussed the appearance of the hairline and the importance of using DHT blockers like finasteride or dutasteride post-transplant.

A 26-year-old has seen hair regrowth in 4.5 months using oral finasteride, topical minoxidil, and recently RU58841 on the temples. Suggestions include adding weekly microneedling to improve results.

An 18-year-old male with hair loss is considering starting finasteride but is concerned about potential side effects like gynecomastia due to his prolactin levels. He seeks guidance on whether his bloodwork indicates it's safe to begin treatment.