This study found that a specific macrophage subpopulation in the dermis helps maintain hair follicle stem cell quiescence through cytokine-mediated signaling.
May 2025 in “OPAL (Open@LaTrobe) (La Trobe University)”
In this study, computational analysis identified six molecules, including Jamogenin, as effective in binding to the enzyme 5-alpha reductase (5-AR) from herbal extracts like nettle, saw palmetto, and fenugreek, suggesting potential for hair loss treatments.
This study found that topical application of partial proteasomal inhibitors accelerates hairgrowth by stabilizing β-catenin and disrupting the hair cycle's normal balance of activation and quiescence.
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January 2020 in “Seoul National University Open Repository (Seoul National University)”
This study found that a phosphodiesterase 3 inhibitor promoted hairgrowth in human dermal papilla cells and stimulated anagen induction in mice, suggesting potential as a treatment for alopecia.
In this study, the researchers reported that a newly developed PYGL inhibitor, HTPI, enhanced hairgrowth in an ex-vivo culture by reducing oxidative damage in hDPCs and inhibiting glycogen degradation in hORSCs, showing potential as a treatment for hair loss comparable to minoxidil.
Akkermansia bacteria can improve hairgrowthinhibited by testosterone, and metformin may increase Akkermansia, which could help with hair loss related to aging, insulin resistance, and inflammation.
Intermittent fasting may inhibithairgrowth by triggering a stress response that affects hair-follicle stem cells. Some users believe genetics and DHT play a larger role in hair loss, and treatments like Minoxidil and Finasteride are mentioned as ineffective for some.
Relaxation may promote hairgrowth by reducing corticosterone, which affects hair follicle stem cells. Corticosteroids are used for alopecia areata, but their long-term use for androgenic alopecia is uncertain.
Beta-sitosterol may inhibit 5-alpha reductase type 2 enzyme, potentially reducing DHT levels and promoting hairgrowth, similar to finasteride but possibly with fewer side effects. Its effectiveness and side effects compared to other treatments like saw palmetto and finasteride remain uncertain due to limited research.
A user shared a hairgrowth 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.
glycoprotein that inhibits TGF-β and promotes hairgrowth by antagonizing activin
What is follistatin, and how does it influence hair follicle growth and regeneration?Follistatin blocks activin and related growth-inhibiting proteins, which in laboratory and animal work is described as keeping hair follicles in their growth phase; the only verifiable human evidence is a single small 2011 phase 1 injection trial, so follistatin remains experimental and is not an approved hair-loss treatment.