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Glossary Follicular Route

pathway for substances to penetrate skin via hair follicles

The follicular route refers to the pathway through which substances can penetrate the skin via hair follicles. This route is significant in dermatology and pharmacology because hair follicles provide a direct channel to deeper layers of the skin, allowing for more efficient delivery of topical medications and treatments.

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Research

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research In Silico Study on the Contribution of the Follicular Route to Dermal Permeability of Small Molecules

February 2024 in “Pharmaceutical research”

In this in silico study, researchers found that the hair follicle's contribution to dermal permeability of small molecules varies with the lipophilic and hydrophilic properties of substances, highlighting the need for careful characterization of substances filling the follicular route when interpreting experimental permeability data.

research Follicular transport route – Research progress and future perspectives

211 citations , February 2009 in “European journal of pharmaceutics and biopharmaceutics”

This review summarizes recent advancements in follicular targeting for drug delivery via hair follicles and calls for pilot studies in humans to explore potential clinical applications.

research Applications and limitations of lipid nanoparticles in dermal and transdermal drug delivery via the follicular route

95 citations , July 2015 in “European journal of pharmaceutics and biopharmaceutics”

This review discusses the application of lipid nanoparticles for enhancing drug delivery through hair follicles and reports no new clinical results, emphasizing the potential role of sebum-like lipids in this context.

Follicular Penetration of Caffeine from Topically Applied Nanoemulsion Formulations Containing Penetration Enhancers: In Vitro Human Skin Studies

research Follicular Penetration of Caffeine from Topically Applied Nanoemulsion Formulations Containing Penetration Enhancers: In vitro Human Skin Studies

35 citations , January 2018 in “Skin pharmacology and physiology”

This study found that nanoemulsion formulations with oleic acid or eucalyptol significantly enhanced the delivery and retention of caffeine through hair follicles and surrounding skin regions.

research Heat Enhanced Follicular Delivery of Isotretinoin to the Skin

8 citations , June 2019 in “Pharmaceutical research”

This study found that using short durations of heat with chemical penetration enhancers improved isotretinoin delivery to human skin, especially via the hair follicles.

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Community Join

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community Pelage PP405: New Hair Growth from Inactive Follicular Units - Phase 2a results at AAD 2026

1080 upvotes 5 months ago

PP405, a topical treatment, shows promise for hair growth by activating inactive follicles, with 66% of participants experiencing positive results. The treatment is well-tolerated and may proceed directly to Phase 3 trials, offering a potential alternative to minoxidil and finasteride.

community Hair Loss Inflammation Prevention Stack

48 upvotes 1 year ago

The conversation discusses a hair loss and scalp care routine involving ciclopirox shampoo, benzoyl peroxide, clindamycin gel, clobetasol propionate, and calcipotriol to manage seborrheic dermatitis, folliculitis, and inflammation. It also touches on the role of diet and other treatments like oral minoxidil and pioglitazone for scalp health.

community New vellus all over — just 9 days into once-daily 5% minoxidil.

161 upvotes 8 months ago

The user has been using 1 mg finasteride for three months and recently started using 5% minoxidil once daily, resulting in new vellus hair growth. The user is hopeful that minoxidil will positively impact terminal hairs and is considering adding a derma stamp to the routine.

community Creatine Does Not Increase DHT And Does Not Cause Hair Loss - Randomized Controlled Trial

308 upvotes 1 year ago

Creatine does not increase DHT levels or cause hair loss. Personal experiences vary, but scientific evidence shows no link between creatine and hair loss.

community Longest turnaround time for Minox & Finasteride Use

19 upvotes 3 weeks ago

The user has been using Minoxidil and Finasteride for hair loss since December 2025, experiencing slower progress compared to others, and is considering additional treatments like Exosomes. Other users share similar experiences with delayed results and suggest patience, while some recommend exploring other treatments or consulting a doctor for underlying causes.

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Learn

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learn Minoxidil

An essential vasodilator with some anti-androgenic effects

learn Overview

learn Thymosin Beta 4

learn Hair Transplant

What is Follicular Unit Extraction (FUE) in hair transplants? Follicular Unit Extraction (FUE) is a minimally invasive hair transplant method that extracts individual hair follicles.
What is Follicular Unit Transplantation (FUT) in hair transplants? Follicular Unit Transplantation (FUT) involves removing a scalp strip for hair restoration.

learn Follicusan

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Clinics

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33
Hair Transplant
Australian Hair & Scalp Clinics-Hair Regrowth by Herbal Follicular ActivationMelbourne, VIC · AU

Experts

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