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Glossary Prostaglandin Analogs

synthetic compounds mimicking prostaglandins, affecting hair growth

Prostaglandin Analogs are synthetic compounds that mimic the action of prostaglandins, which are naturally occurring substances in the body involved in various physiological processes, including inflammation and the regulation of blood flow. These analogs are commonly used in medical treatments, such as for glaucoma to reduce intraocular pressure and in some cases to promote hair growth, as they can influence hair follicle activity.

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Research

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research Phosphodiesterase inhibitors and prostaglandin analogues in dermatology: A comprehensive review

9 citations , December 2020 in “Dermatologic Therapy”

This review found that oral and topical phosphodiesterase inhibitors and topical prostaglandin analogues are safe and effective treatments for various skin diseases, including psoriasis, atopic dermatitis, vitiligo, and alopecia.

research Influence of prostaglandin F_2α and its analogues on hair regrowth and follicular melanogenesis in a murine model

103 citations , April 2005 in “Experimental dermatology”

This study found that PGF2alpha analogues and PGE2 stimulated hair follicle activity in mice, with PGF2alpha analogues also linked to potential side effects like poliosis when used as eye treatments.

research A rare complication from prostaglandin analogue therapy

6 citations , July 2008 in “Clinical and experimental optometry”

This case report describes a rare complication of prostaglandin analogue eye drops for glaucoma, where a patient experienced extensive unwanted malar hair growth, leading to potential therapy discontinuation.

research Prostaglandin analogue for eyebrow loss in frontal fibrosing alopecia: a case report

5 citations , May 2019 in “Journal of the European Academy of Dermatology and Venereology”

This case report discusses the use of a prostaglandin analogue for treating eyebrow loss in a patient with frontal fibrosing alopecia, but provides no new clinical results.

research Topical Prostaglandin Analogues in Androgenetic Alopecia: A Systematic Review of Clinical Evidence

April 2026 in “International Journal of Drug Delivery Technology”

This review concluded that while topical prostaglandin analogues show some potential in treating androgenetic alopecia, evidence is still limited and no products have regulatory approval.

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community You will lose hair if your prostaglandins aren't in balance

56 upvotes 1 year ago

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 DLQ01: A Better "Minoxidil" PGF2a synthetic analogue.

3 upvotes 1 year ago

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 ISO a topical without minoxidil

3 upvotes 8 months ago

A user seeks a topical hair loss treatment without minoxidil, considering options like finasteride, dutasteride, caffeine, tretinoin, or prostaglandin analogues. Recommendations include products like Strut, Maximus, Zeuss, and custom formulas from compounding pharmacies.

community Chromosome 20’s balding effects and why fin likely isn’t working for some.

in Treatment 96 upvotes 1 year ago

Finasteride is effective for DHT/AR-driven hair loss but not for chromosome 20-driven cases, where treatments like minoxidil, prostaglandin analogs, and low-level laser therapy may be more beneficial. Genetic testing can help determine the underlying cause of hair loss to tailor treatment effectively.

community Painkillers May Block Minoxidil

12 upvotes 1 year ago

Painkillers like Aspirin may reduce Minoxidil's effectiveness by inhibiting the enzyme PGHS-1, which is crucial for hair growth. Using NSAIDs that inhibit COX-2 or combining Minoxidil with PGF2/E2 analogues or retinoids may enhance its efficacy.

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Learn

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learn Overview

learn Cetirizine

popular antihistamine showing promise for hair loss as an anti-inflammatory and prostaglandin inhibitor

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.

learn Setipiprant

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 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.

learn Latanoprost

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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