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research Melanocyte stem cells: a melanocyte reservoir in hair follicles for hair and skin pigmentation

240 citations , April 2011 in “Pigment Cell & Melanoma Research”

This review discusses the identification and characteristics of melanocyte stem cells, emphasizing their role in hair pigmentation, greying, and skin repigmentation, but reports no new research findings.

research Reconstructing protein conformations to activate follicular enzyme-nutrient reservoirs for reversing follicle aging

May 2026 in “Bioactive Materials”

This study reported that in degenerative alopecia, Zn²⁺/Cu²⁺-dependent proteases are downregulated and destabilized, and a specially developed microneedle patch reactivated these enzymes, reduced senescence, and enhanced hair regeneration in an animal model.

research Unlocking Hair Follicles as Drug Reservoirs: Advances in Transfollicular Drug Delivery

April 2026 in “Zenodo (CERN European Organization for Nuclear Research)”

This review highlights advancements in transfollicular drug delivery, noting that nanoparticles optimized to 300-400nm improve drug penetration into hair follicles better than conventional formulations, and that novel stimulus-responsive systems offer enhanced targeted delivery for conditions like androgenic alopecia and acne.

research Human hair follicle: reservoir function and selective targeting

97 citations , September 2011 in “British Journal of Dermatology”

The human hair follicle can store topical compounds and be targeted for drug delivery with minimal side effects.

research The Human Hair Follicle: A Reservoir of CD40+ B7-Deficient Langerhans Cells that Repopulate Epidermis After UVB Exposure

99 citations , April 1998 in “The journal of investigative dermatology/Journal of investigative dermatology”

This study found that human hair follicles serve as a crucial reservoir for Langerhans cells, which repopulate the epidermis depleted by ultraviolet B exposure.

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Community Join

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community Everything you ever wanted to know about Pelage Pharma's PP405: how it works and what to expect

126 upvotes 3 months ago

PP405 may encourage earlier hair growth and slightly increase visible hair count but does not reverse hair follicle miniaturization in male pattern baldness. It does not address damage to the dermal papilla or broken Wnt signaling.

community Targeted Follicular Finasteride Delivery: A Low-Systemic Strategy

15 upvotes 5 months ago

A peptide-based delivery system for finasteride shows promise in reducing systemic side effects while maintaining hair growth effectiveness. Combining this with other treatments like minoxidil and RU58841 could enhance results with lower systemic absorption.

community My Theory Of Androgenic Alopecia

16 upvotes 10 months ago

Hair loss is linked to cellular physiology and the IGF-1 to TGF-B1 ratio, not just androgen sensitivity. The theory lacks evidence, while finasteride and minoxidil are effective treatments.

community Is there any new drug that looks promising ?

26 upvotes 2 years ago

The conversation discusses GT20029, a drug in Phase II trials that targets androgen receptors with minimal systemic effects, and TDM-105795, a growth stimulant with a different mechanism than minoxidil that may revive papilla stem cells. Both are potential new treatments for hair loss.

community Today was Last update on pp405

109 upvotes 1 year ago

A new hair loss treatment, PP405, is moving from phase 2A to 2B in clinical trials, sparking discussions about its potential to regrow dormant hairs and its impact on existing treatments like Minoxidil and finasteride. Some users express skepticism, while others are hopeful about its future effectiveness.

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Learn

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learn Overview

learn Beta Polypeptide

learn Stem Cell Factor

learn Niacinamide

How does Niacinamide support the hair follicle’s nutrition? Niacinamide nourishes hair follicles by boosting energy production and supporting antioxidant defenses.

learn oleic acid

How does Oleic Acid support hair follicle strength and growth? Oleic acid strengthens hair follicles by enhancing hydration and reducing inflammation.

learn Scalp Micropigmentation

Will scalp micropigmentation damage my existing hair or follicles? Scalp micropigmentation does not damage existing hair or follicles.

learn Redensyl

Does Redensyl regenerate follicles or only strengthen existing hair? Redensyl primarily strengthens existing hair rather than regenerating new follicles.

learn KY19382

How does KY19382 actually stimulate dormant hair follicles to grow again? KY19382 stimulates dormant hair follicles by reactivating the Wnt/β-catenin signaling pathway.

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Clinics

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