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GlossarySkin Barrier Formation

process by which skin's outer layer develops protective functions

Skin barrier formation refers to the process by which the outermost layer of the skin, known as the stratum corneum, develops to protect the body from environmental threats like pathogens, chemicals, and physical injuries. This barrier is composed of tightly packed dead skin cells and lipids, which work together to prevent water loss and maintain hydration, ensuring the skin remains healthy and functional.

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community Are we underestimating systemic absorption with homemade/generic Topical Fin? (HPCH vs. PG/Ethanol formulations)

in Research/Science 5 upvotes 4 months ago

Topical finasteride may have higher systemic absorption and lower efficacy when using a Propylene Glycol/Ethanol formulation compared to the hydroxypropyl chitosan (HPCH) formulation. The safety profile of topical finasteride relies heavily on the HPCH formulation, and using standard solutions might lead to different pharmacokinetics.

community How finasteride lowers brain's happiness steroid allopregnanolone and causes depression: systemic dihydroprogesterone crosses blood brain barrier, you don't even need finasteride and brain 5ar for that

in Finasteride/Dutasteride 286 upvotes 1 year ago

Finasteride may lower allopregnanolone levels, potentially affecting mood, but many users report improved mental health due to reduced hair loss. Experiences with finasteride and dutasteride vary, with some experiencing side effects and others finding them beneficial for hair retention and overall happiness.

community The story of RU58841/ PSK3841

in Research 622 upvotes 1 year ago

RU58841, a potential hair loss treatment, was not commercialized due to marketability issues and lack of long-term safety data. Concerns about its formulation and delivery methods further complicate its use.

community Possible natural pp405 solution

in Research/Science 45 upvotes 9 months ago

Rotenone, a natural plant extract, may promote hair growth by increasing LDH activity and blocking MPC in the scalp, but it carries risks due to its toxicity. The suggested formulation includes Barbasco extract, DMSO, propylene glycol or PEG-400, ethanol, and a carrier oil.

community Topical Finasteride that doesn’t go systematic is the cure

in Treatment 3 upvotes 1 year ago

Topical finasteride that doesn't penetrate the skin could potentially treat hair loss without side effects. Current challenges include finding a formulation that remains on the scalp without increasing blood levels.

community Phase II topical dut study - outperforms oral fin with a minor DHT reduction

in Research/Science 61 upvotes 3 months ago

Topical dutasteride 0.05% is more effective for hair growth than oral finasteride 1mg, with minimal DHT reduction. The formulation uses castor oil and MCTs for better absorption but is not widely available until 2028.

community Does anyone know the chemical formula for pelage pp405?

in Research/Science 14 upvotes 1 year ago

The conversation discusses the lack of public information on the chemical structure of PP405, a hair loss treatment, and the challenges of synthesizing it without a patent. It also explores a patent related to hydrogen-based topical formulations for reducing oxidative stress and inflammation.

community Haircafe: Are dutasteride tablets less effective than dutasteride gel capsules?

in Finasteride/Dutasteride 38 upvotes 11 months ago

Dutasteride tablets are less effective than softgel capsules because they require a fat-based environment for proper absorption. Softgel capsules, like Avodart, are designed to maximize bioavailability, while powdered tablets may result in significantly lower DHT suppression.

community Can I put oral dutasteride into my minoxidil?

in Finasteride/Dutasteride 5 upvotes 3 years ago

A 46-year-old male is considering adding topical dutasteride to his hair loss regimen, which includes oral minoxidil, topical minoxidil, miconazole nitrate, pumpkin seed oil, microneedling, DHT oil blocker, lipogaine, and ketoconazole shampoo. He plans to start with a 0.025% concentration in lipogaine once a week to monitor for side effects.

community Estradiol mesotherapy / idea feedback

in Female 6 upvotes 1 year ago

The conversation discusses using estradiol mesotherapy to replicate hormone replacement therapy results while minimizing systemic exposure. It also covers the use of Spironolactone cream, which reportedly has no systemic side effects, and the potential risks of using bicalutamide and Spironolactone in men.

community Creating Custom Topicals: A Guide (2025 Edition)

in Research/Science 27 upvotes 7 months ago

Creating custom topical treatments for hair loss using minoxidil, finasteride, and RU58841. It includes recipes and instructions for home preparation, focusing on cost savings and customization.

community only microneedling and supplements

in Progress Pictures 67 upvotes 9 months ago

The user used microneedling, zinc, vitamin D3, biotin, magnesium, saw palmetto, pumpkin seed oil, and a DHT-blocker shampoo with biotin for hair loss. They are considering adding minoxidil due to stagnation in progress.

community What happened to topical dutasteride??

in Finasteride/Dutasteride 28 upvotes 1 year ago

Topical dutasteride is considered for hair loss, but concerns about systemic absorption and side effects like reduced libido are common. Users have mixed results, with some preferring oral finasteride or dutasteride despite side effects, while others find topical treatments beneficial but challenging.

community New Latanoprost-Based Formula Used by Hollywood Celebrities

in Treatment 26 upvotes 3 years ago

A new Latanoprost-based formula used by Hollywood celebrities to treat hair loss, with the formula containing minoxidil, tretinoin, melatonin, azelaic acid, zinc thymulin, vitamin B6, sandalore and methyl vanillate. It also mentions the potential of offering a combined sublingual minoxidil/oral dutasteride option in the future.

community A Theory on Why Microneedling Works

172 upvotes 6 years ago

Microneedling may enhance hair regrowth by transferring stem cells to dormant follicles, improving the effects of minoxidil. Users discuss using microneedling with needle lengths around 1.5mm to stimulate hair growth.

community Does RU58841 potentially cause cancer?

in Research/Science 1 year ago

RU58841 may pose cancer risks due to its antiandrogen properties and lack of long-term safety data. Using it is considered a high-risk experiment with unknown potential for harm.

community New & Improved Hair Growth Stack for Maximum Results

in Treatment 4 upvotes 1 year ago

A user shared a hair growth stack using minoxidil sulfate, valproic acid, bimatoprost, blue copper peptide, and other ingredients, emphasizing a gel-based formula for better skin tolerance. Another user suggested adding a 5-alpha-reductase inhibitor like finasteride or dutasteride for more effective long-term results.

community Lion Mane Part 2: Microneedling with Topicals, beneficial compounds, maybe?

in Microneedling 1 upvotes 2 years ago

The conversation discusses microneedling techniques and the use of Minoxidil, copper peptides, EGF, FGF, ceramides, and hydration serums to enhance hair growth. It explores optimizing scalp conditions and the potential benefits of various compounds in conjunction with microneedling.

community Genuine Minoxidil Sanity Check-Tiktok Shops

in Minoxidil 187 upvotes 11 months ago

A user bought Kirkland Minoxidil from a TikTok shop and sought confirmation of its authenticity through a bleach test, which some users warned could be dangerous. Many participants advised against buying from TikTok due to the risk of fakes, suggesting alternatives like buying from Costco or reputable online pharmacies.

community Important thing i discovered that makes ru58841 very effective

in Update 80 upvotes 3 months ago

RU58841 is more effective when mixed with isopropyl alcohol instead of minoxidil, as water in minoxidil degrades RU58841. Applying RU58841 separately from minoxidil, with an hour gap, enhances hair growth results.

community Do 'do it yourself' topical fin really work?

in Treatment 1 upvotes 10 months ago

DIY topical finasteride mixed with minoxidil is used due to the unavailability of pharmacy-grade options in Sweden. The user reports positive results after three months, with improved hair growth at the temples and vertex.

community How come dutasteride doesn't lower allopregnanolone, but finasteride does?

in Finasteride/Dutasteride 12 upvotes 1 year ago

Finasteride significantly lowers allopregnanolone levels, while dutasteride's effect is less clear and may vary. Some users speculate that dutasteride might be healthier for the brain due to its different inhibition pathways.

community Does finasteride/dutasteride reverse aging?

in Chat 45 upvotes 1 year ago

Finasteride and dutasteride can improve skin texture and reduce acne by lowering DHT but do not reverse aging. They may enhance skin and hair health for some, but can also cause side effects like dry skin and sexual dysfunction.

community How long have you tried topical melatonin?

in Treatment 4 upvotes 2 years ago

The conversation is about the effectiveness of topical melatonin for hair loss, asking for details on dosage, frequency, duration of use, results, and brand information. An update includes a skeptical view on the studies regarding melatonin's effectiveness.

community Why don’t finasteride gummies exist?

in Research/Science 2 years ago

The conversation discusses the idea of creating finasteride gummies for hair loss treatment, with some users expressing skepticism about their effectiveness compared to pills. Concerns include the potential for reduced drug delivery in gummy form and the risk of children mistaking them for candy.

community Topical Dutasteride is Here.

in Finasteride/Dutasteride 153 upvotes 5 years ago

The availability of Topical Dutasteride, a potential treatment for hair loss, which can be purchased without prescription from MinoxidilMax. Other treatments discussed include Topical Finasteride and PRP injections, with discussion around dosage, efficacy, side-effects and safety.

community for those who use oral minoxidil, did it age your face?

in Minoxidil 44 upvotes 1 year ago

Oral minoxidil may cause facial puffiness or aging in some users, but results vary. Many users experience positive hair growth and stress the importance of skincare and a healthy lifestyle.

community Dutasteride vs Finasteride and Steroid

in Progress Pictures 87 upvotes 8 months ago

Dutasteride is preferred over finasteride for hair loss due to fewer side effects. Combining dutasteride with minoxidil and RU58841 is effective for hair regrowth, even during steroid use.

community risks with finasteride and dutasteride

in Research/Science 141 upvotes 11 months ago

Finasteride and dutasteride have potential risks, including post-finasteride syndrome, but are commonly used for hair loss. RU58841, minoxidil, and needling are suggested as alternatives, though all treatments carry risks.

community UVA researchers discovered stem cells that plays a crucial role in hair growth - We are closer than ever to the cure!

in Research/Science 282 upvotes 1 year ago

Researchers at the University of Virginia discovered a new group of stem cells in hair follicles that could potentially restore hair growth. The findings suggest that activating these stem cells might offer a new way to combat hair loss, though practical treatments are still years away.