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    GlossaryRetinoic Acid Signaling

    regulates gene expression through vitamin A derivatives

    Retinoic Acid Signaling, also known as RA signaling, is a biological pathway where retinoic acid, a derivative of vitamin A, binds to specific receptors in cells to regulate gene expression. This pathway is crucial for various physiological processes, including cell growth, differentiation, and embryonic development. In the context of hair biology, RA signaling can influence hair follicle development and cycling, potentially impacting conditions like alopecia.

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      community Tazarotene shows strong standalone hair regrowth potential, not just a Minoxidil enhancer. Backed by VEGF, HF regeneration, and angiogenesis pathways. Here’s why.

      in Research/Science  136 upvotes 9 months ago
      Tazarotene shows potential as a standalone treatment for hair regrowth by stimulating new hair follicle formation and promoting angiogenesis, similar to microneedling effects. It can be used topically without minoxidil, but users should start with a low concentration to avoid irritation.

      community Dutasteride Literally Saves Your Hair

      in Finasteride/Dutasteride  101 upvotes 1 year ago
      Dutasteride significantly reduces scalp DHT levels and can save hair, though shedding is part of the process. Some users report success with dutasteride, while others struggle despite using it along with finasteride and oral minoxidil.

      community Looks like a real cure to the root of baldness (DHT-induced senescence) was proven earlier this year

      in Research/Science  734 upvotes 3 years ago
      A study that outlines the full model for androgenic alopecia (AGA) which links DHT to cellular senescence in dermal papilla cells, and suggests black chokeberry as a source of cyanidin 3-O-arabinoside polyphenol with potential anti-oxidant properties that could reverse this process. The post encourages reaching out to experts in anti-aging and longevity to research treatments involving the polyphenol.

      community Why does it seem everyone favors finasteride over dutasteride?

      in Female  62 upvotes 2 years ago
      The conversation discusses preferences for hair loss treatments, specifically finasteride over dutasteride. Users share personal experiences, cost considerations, FDA approval status, and potential side effects, with some switching between treatments to find what works best for them.
      If You Have DUPA, PLEASE READ THIS: Everyone Should Be Scalp Biopsied

      community If You Have DUPA, PLEASE READ THIS: Everyone Should Be Scalp Biopsied

      in Research  830 upvotes 1 year ago
      Scalp biopsies are crucial for diagnosing hair loss conditions like Diffuse Unpatterned Alopecia (DUPA) and retrograde hair loss, as treatments like finasteride and dutasteride may not be effective if other conditions are present. Combining PPAR-GAMMA agonists with retinoids could improve treatments for conditions like Lichen Planopilaris.

      community Oral minoxidil vs Topical Minoxidil w/ Retinoic acid

      in Minoxidil  5 upvotes 9 months ago
      Topical minoxidil with retinoic acid is effective but causes scalp irritation, leading the user to consider switching to 2.5mg oral minoxidil. Oral minoxidil may cause body hair growth and heart-related side effects, so it's advised to use it under medical guidance.

      community Minoxidil works only with Retinoic acid

      in Minoxidil  314 upvotes 9 months ago
      Minoxidil is more effective when combined with retinoic acid, such as tretinoin or tazarotene, enhancing hair growth. Some users experience significant regrowth, while others see minimal effects or side effects.

      community How important are Retinoic and Hydrocortisone in topical serum?

      in Treatment  5 upvotes 1 year ago
      The conversation is about using a topical serum for hair loss with ingredients like finasteride and minoxidil, and the option to exclude retinoic acid and hydrocortisone due to concerns about long-term effects. One user prefers using only finasteride, avoiding minoxidil and retinoic acid, and plans to remove hydrocortisone in future orders.

      community Does anybody else got their hair ruined when on tretinoin?

      in Chat  4 upvotes 1 year ago
      The user experienced hair shedding and follicle shrinkage when using retinoic acid, despite trying different concentrations and frequencies. The hair loss persisted for six months but regrew after stopping the treatment.

      community Is this solution unnecessarily aggresive?

      in Product  2 upvotes 4 months ago
      The solution contains minoxidil, finasteride, azelaic acid, caffeine, retinoic acid, and procapil. Users suggest minoxidil with tretinoin and a 5-alpha reductase inhibitor, while dismissing retinoic and azelaic acids as unnecessary.

      community Is this fin/dut/min topical compound overkill?

      in Finasteride/Dutasteride  4 upvotes 3 years ago
      A user questions if a topical compound with finasteride, dutasteride, minoxidil, retinoic acid, caffeine, and triamcinolone is excessive for hair loss treatment. Another user shares their experience using topical finasteride without issues and notes that alternating finasteride and dutasteride is common.

      community Ashley & Martin Australia real or a scam?

      in Treatment  1 upvotes 3 months ago
      Ashley & Martin Australia offers a treatment with Finasteride, Minoxidil, Retinoic Acid, a red light device, and shampoos for hair regrowth. Some users are skeptical, suggesting avoiding big companies and consulting a doctor for affordable prescriptions.

      community Progress pictures over 4 months

      in Progress Pictures  2 upvotes 2 weeks ago
      The user shared progress pictures over four months using topical finasteride (0.1%) and minoxidil, initially at 7% and later increased to 10%, with retinoic acid. Another user suggested trying a hair system or shaving, doubting the effectiveness of the treatments.

      community Finasteride solution changing colors

      in Finasteride/Dutasteride  1 upvotes 1 month ago
      A user noticed a color change in their hair loss solution containing minoxidil, finasteride, retinoic acid, and hydrocortisone after storing it for several months. They are concerned about the effectiveness of the solution due to potential oxidation.

      community Progressi in 9 mesi, da luglio 2025 a marzo 2026

      in Progress Pictures  153 upvotes 1 month ago
      The user shared their 9-month hair regrowth progress using topical Minoxidil 5%, finasteride 0.05%, retinoic acid 0.01%, dermastamping, ketoconazole shampoo, and supplements like biotin. They experienced some hair density improvement but minimal change in the hairline, with initial side effects from finasteride that resolved after dosage adjustment.

      community Almost 7 months on topical fin/min- not seeing much benefit

      in Progress Pictures  12 upvotes 5 months ago
      A 39-year-old user has been using topical 0.3% finasteride with 6% minoxidil for almost 7 months without seeing significant improvement in hair regrowth. They are considering switching to a gel with higher minoxidil concentration, adding retinoic acid, or trying topical dutasteride, while others suggest returning to 5% minoxidil foam, adding oral finasteride, or exploring microneedling and lifestyle changes.

      community Switched from Fin to Dut —Need Advice

      in Treatment  7 upvotes 9 months ago
      The user switched from finasteride to dutasteride due to continued hair thinning and is seeking advice on whether to continue with dutasteride, while also using minoxidil, topical finasteride, retinoic acid, and ketoconazole shampoo. Responses suggest sticking with dutasteride as it is considered a potent treatment, though experiences vary.

      community Which Ingredient is causing Burning Red Scalp?

      in Minoxidil  3 upvotes 11 months ago
      The conversation is about identifying the cause of a burning red scalp from a topical hair loss formula. Retinoic acid and ethyl alcohol are suspected irritants, with retinoic acid being considered for removal.

      community M35 5 months progress with fin/min topical

      in Is this regrowth?  21 upvotes 11 months ago
      A user shared their 5-month progress using a topical treatment with finasteride, minoxidil, and retinoic acid, noting some hair growth but also shedding. Another user encouraged them, sharing their own experience of gradual improvement over 12 months and advising patience.

      community Results from oral treatment vs topical

      in Finasteride/Dutasteride  4 upvotes 11 months ago
      The conversation discusses switching from oral to topical treatments for hair loss, specifically using a mix of retinoic acid, finasteride, and minoxidil, after oral treatments like dutasteride and finasteride were ineffective. The user is concerned about the cost and potential impact of dandruff on the absorption of topical treatments.
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