research Prostaglandin D 2 Inhibits Hair Growth and Is Elevated in Bald Scalp of Men with Androgenetic Alopecia
PGD2 stops hair growth and is higher in bald men with AGA.
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research Divergent proliferation patterns of distinct human hair follicle epithelial progenitor niches in situ and their differential responsiveness to prostaglandin D2
This study found that prostaglandin D2 reduced proliferation in bulge resident K15+ stem cells but not in other K15+ progenitor cells, suggesting differential impacts on hair follicle stem cell niches.
research Biochemical and Structural Characteristics, Gene Regulation, Physiological, Pathological and Clinical Features of Lipocalin-Type Prostaglandin D2 Synthase as a Multifunctional Lipocalin
This review summarizes recent research on the molecular properties and functions of L-PGDS and PGD2, but reports no new findings, highlighting their pathophysiological roles and guiding future studies.
research Prostaglandins in androgenetic alopecia in 12 men and four female
This letter to the editor about prostaglandins in androgenetic alopecia in men and women reports no new research findings.
research Prostaglandins: Key players in immunomodulation of the nervous system
This review discusses the roles of prostaglandins in the nervous system and their therapeutic potential for neurological diseases, noting their complex interactions with immune cells and signaling pathways.
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5 / 68 resultscommunity Has anyone here tried topical synthetic prostaglandins (Bimatoprost, Latanoprost, cetirizine) to stimulate hair growth?
The conversation discusses using topical synthetic prostaglandins like Bimatoprost, Latanoprost, and cetirizine for hair growth. The user shares a link suggesting these treatments may be effective.
community DLQ01: A Better "Minoxidil" PGF2a synthetic analogue.
DLQ01, a prostaglandin F2α analog, shows promise for hair growth by directly stimulating PGE2/PGF receptors without needing conversion, and can be combined with minoxidil and retinoids like tretinoin for enhanced effectiveness. Minoxidil's efficacy may be reduced by COX-1 inhibitors, but using prostaglandin analogs like Latanoprost or Bimatoprost can help maintain its effectiveness.
community You will lose hair if your prostaglandins aren't in balance
Prostaglandin balance affects hair loss, particularly in conditions like Lichen Planopilaris, where an imbalance can lead to hair follicle damage. Treatments mentioned include prostaglandin analogs and Pioglitazone HCL, with a focus on maintaining prostaglandin equilibrium for potential hair regrowth.
community Doubts about castor oil
Castor oil's effectiveness for hair growth is debated, with concerns about its impact on skin health and prostaglandin levels. Some users suggest combining it with coconut oil and using it alongside finasteride for better results, while others recommend sticking to proven synthetic treatments.
community Mechanism of Action these drugs re-grow hair?
Minoxidil, finasteride, and RU58841 promote hair growth by different mechanisms, with minoxidil and prostaglandin E1 being specifically mentioned. Corticosteroids can also cause hair growth.
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5 / 801 results- How does cetirizine reduce inflammation linked to hair loss? Cetirizine is proposed to lower prostaglandin D2 and raise prostaglandin E2 around hair follicles; three small trials of a compounded 1% topical report modest increases in hair density and shaft thickness, with minoxidil doing better head-to-head. Topical cetirizine is off-label and unapproved for hair loss, and the evidence is too thin to call it effective or safe.
- How does Setipiprant work on the scalp to potentially promote hair regrowth? Setipiprant blocks the DP2 (CRTH2) receptor that prostaglandin D₂ acts through, and PGD₂ is reported to be elevated in balding scalp — but the one published placebo-controlled trial in men (DuBois 2021, n=169) found no significant hair regrowth. It is an experimental compound, not an approved hair-loss medicine.
- What is Setipiprant and how does it differ from DHT blockers like finasteride or dutasteride? Setipiprant blocks the prostaglandin D2 receptor DP2 rather than the DHT pathway that finasteride and dutasteride act on. The one published human trial — a 169-man, 24-week phase 2a study at 2,000 mg a day — reported no statistically significant improvement in hair density over placebo, and setipiprant is not an approved hair-loss medicine anywhere.
- How does latanoprost work to make eyelashes and possibly scalp hair grow? Studies report that latanoprost, a prostaglandin analog, lengthens the anagen (growth) phase of hair follicles, which is the mechanism given for the eyelash thickening seen in glaucoma patients; on the scalp the evidence is one 16-man pilot study and animal work, so the effect there is unproven.
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popular antihistamine showing promise for hair loss as an anti-inflammatory and prostaglandin inhibitor
learn Setipiprant
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glaucoma medication with hair follicle stimulant effects
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An essential vasodilator with some anti-androgenic effects
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