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Glossary Hair Structure

composition and organization of a hair strand's layers

Hair structure refers to the composition and organization of a hair strand, which consists of three main layers: the cuticle, cortex, and medulla. The cuticle is the outermost layer, made of overlapping cells that protect the inner layers. The cortex, which is the thickest layer, contains keratin and pigments that give hair its strength, elasticity, and color. The medulla, found in thicker hair types, is the innermost layer and may play a role in the hair's overall structure and function. Understanding hair structure is crucial for diagnosing and treating hair-related conditions.

Related Terms

Research

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research WNT Signaling in the Control of Hair Growth and Structure

271 citations , March 1999 in “Developmental biology”

This study reveals that overexpression of Wnt3 in transgenic mouse skin leads to a short-hair phenotype and cyclical balding due to structural defects in hair shafts, highlighting a role for WNT signaling in hair growth regulation.

research Formation and Structure of Human Hair

175 citations , January 1995 in “Birkhäuser Basel eBooks”

This review examines the histochemistry and keratinization processes of human hair, exploring the structural roles of keratin proteins, protein chains, and lipids, but offers no new results.

research The structure and organization of lanceolate mechanosensory complexes at mouse hair follicles

106 citations , February 2014 in “eLife”

This study concluded that terminal Schwann cells are essential for the maintenance and regeneration of mechanosensory lanceolate complexes at hair follicles in adult mice.

research Mutant laboratory mice with abnormalities in hair follicle morphogenesis, cycling, and/or structure: annotated tables

86 citations , December 2001 in “Experimental dermatology”

This review classifies mutant mice with hair abnormalities into six categories, providing an annotated table that serves as a reference for understanding the molecular controls of hair growth.

research Hair colouring, permanent styling and hair structure

72 citations , July 2003 in “Journal of cosmetic dermatology”

This review discusses the psychological importance of hair and explores how various hair cosmetics can affect hair health, emphasizing that certain products can lead to acute hair problems when repeatedly altering the natural style.

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Community Join

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community Sometimes, the problem is the hair structure…

in Progress Pictures 165 upvotes 2 years ago

A 24-year-old shared his hair loss journey, using finasteride and topical minoxidil for 6 months with positive results and no side effects. He recommends growing hair out and getting a good haircut to improve appearance and confidence.

community Fully functional hair follicle regeneration through the rearrangement of stem cells and their niches

4 upvotes 11 years ago

Hair follicle regeneration through stem cell rearrangement is discussed, focusing on bioengineered cellular structures rather than traditional hair transplants. Treatments mentioned include Minoxidil, finasteride, and RU58841.

community Do hair follicles dies or are dormant ?

in Finasteride/Dutasteride 92 upvotes 1 year ago

Hair follicles can be dormant and potentially revived with treatments like finasteride and minoxidil, but irreversible loss occurs if certain structures are destroyed. Early intervention is more effective, and additional methods like microneedling may help.

community Microneedling + topical fin/min: how to structure the routine?

in General 78 upvotes 1 year ago

The user is using a topical spray containing finasteride, minoxidil, ketoconazole, and biotin for hair loss and plans to add weekly dermastamping, starting with a needle length of 0.6mm. They seek advice on the safety of combining these treatments, the impact of skipping one dose weekly, and the frequency of replacing the dermastamp.

community Blocking dht should bring it back. So why does fin mostly just hold the line?

17 upvotes 3 months ago

Finasteride mainly prevents further hair loss by blocking DHT but doesn't reverse existing damage, while minoxidil can promote regrowth by waking dormant follicles. Ketoconazole helps with inflammation, but none of these treatments can reverse fibrosis or structural changes around hair follicles.

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