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GlossaryCuticles

Cuticles are the thin, protective layers of overlapping cells that form the outermost part of the hair shaft. They play a crucial role in maintaining hair health by protecting the inner layers from damage, moisture loss, and environmental factors. In the context of hair loss, damaged or raised cuticles can lead to increased hair fragility and breakage, exacerbating thinning or loss. Healthy cuticles contribute to the overall strength and appearance of hair, making their condition an important factor in hair biology.

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Acidic and Basic Hair/Nail (Hard) Keratins: Their Colocalization in Upper Cortical and Cuticle Cells of the Human Hair Follicle and Their Relationship to Soft Keratins

research Acidic and basic hair/nail ("hard") keratins: their colocalization in upper cortical and cuticle cells of the human hair follicle and their relationship to "soft" keratins.

356 citations , December 1986 in “The journal of cell biology/The Journal of cell biology”

Hair and nail cells share similar proteins, indicating a common differentiation pathway.

research Hair cuticle differences between Asian and Caucasian females

21 citations , October 2006 in “International Journal of Dermatology”

Asian hair is stronger and more damage-resistant than Caucasian hair due to a thicker cuticle layer.

research Age‐dependent changes in damage processes of hair cuticle

20 citations , January 2015 in “Journal of cosmetic dermatology”

Older people's hair cuticles get more easily damaged and lose protective oils, especially in their 40s and 50s.

research The cracking of human hair cuticles by cyclical thermal stresses

15 citations , January 1998

Frequent blow-drying causes cracks and breakage in hair cuticles.

research A highly resistant structure between cuticle and cortex of human hair

10 citations , November 2016 in “International Journal of Cosmetic Science”

A tough membrane between the outer and inner layers of human hair protects it from damage.

research Mechanism of Cuticle Hole Development in Human Hair Due to UV-Radiation Exposure

8 citations , March 2018 in “Cosmetics”

UV radiation damages hair by creating holes and peeling cuticle layers.

research Topographical and Tribological Characteristics of Asian Human Hair Cuticles

3 citations , January 2015 in “Mathematical problems in engineering”

Hair damage increases significantly with higher temperatures and longer heating times.

research Hair Pores Caused by Surfactants via the Cell Membrane Complex and a Prevention Strategy through the Use of Cuticle Sealing

1 citations , November 2023 in “Cosmetics”

Surfactants damage hair, but sealing the cuticle can prevent this.

research Facile and Efficient Enzymatic Methods for Harvesting or Removal of Cuticle Cells from Human Hair Shafts

December 2021 in “Journal of natural fibers”

The conclusion is that new methods for isolating hair cuticle cells and removing the cuticle layer are effective and convenient.

Analyzing the Laser-Light Reflection from Human Hair Fibers Part 1: Light Components Underlying the Goniophotometric Curves and Fiber Cuticle Angles

research Analyzing the laser-light reflection from human hair fibers Part1: Light components underlying the goniophotometric curves and fiber cuticle angles

January 2003 in “Research Portal (King's College London)”

Hair color affects light reflection, with black hair having higher cuticle angles and lighter hair showing less specular reflection.

research Human hair shaft proteomic profiling: individual differences, site specificity and cuticle analysis

68 citations , August 2014 in “PeerJ”

Human hair proteins vary by individual, body site, and ethnicity, useful for forensics.

research A mutation in the hair matrix and cuticle keratin KRTHB5 gene causes ectodermal dysplasia of hair and nail type

60 citations , March 2006 in “Journal of Medical Genetics”

A mutation in the KRTHB5 gene causes hair and nail issues.

research Keratins 1 and 10 or homologues as regular constituents of inner root sheath and cuticle cells in the human hair follicle.

44 citations , August 1990 in “PubMed”

Keratins K1 and K10 are found in the inner root sheath and cuticle of human hair follicles.

research Cuticle damage and the tensile properties of human hair

27 citations , February 1991

Cuticle damage doesn't affect hair's tensile strength; the cortex is responsible for it.

research Incubatory environment of the scalp impacts pre‐emergent hair to affect post‐emergent hair cuticle integrity

16 citations , May 2017 in “Journal of cosmetic dermatology”

An unhealthy scalp can damage new hair, but using ZPT shampoo can improve hair health.

research Fine Structure of the Fully Keratinized Hair Cuticle in the Head Hair of the Human

11 citations , January 1981 in “Cells Tissues Organs”

Human hair cuticle has five cell layers with specific junctions and granules.

research Location of keratin-associated proteins in developing fiber cuticle cells using immunoelectron microscopy

10 citations , January 2010 in “International journal of trichology”

Keratin-associated proteins are part of the developing hair fiber cuticle.

research Unzipping the cuticle of the human hair shaft to obtain micron/nano keratin filaments

7 citations , August 2006 in “Biopolymers”

Researchers extracted tiny keratin filaments from human hair by unzipping its outer layer.

research A highly resistant structure between the cuticle and the cortex of human hair. II. CARB, a penetration barrier

6 citations , December 2018 in “International Journal of Cosmetic Science”

CARB is a strong barrier in human hair that prevents dye penetration.

Analyzing the Laser-Light Reflection from Human Hair Fibers: Light Components Underlying the Goniophotometric Curves and Fiber Cuticle Angles

research Analyzing the laser-light reflection from human hair fibers. I. Light components underlying the goniophotometric curves and fiber cuticle angles.

3 citations , July 2003 in “PubMed”

The research found a way to measure hair surface changes by analyzing how light reflects off of it, and determined hair cuticle angles vary by hair length and color.

A Discrete Transition Zone Between Cuticle and Cortex Layers of a Human Hair Fiber: Changes Observed in the Presence of Breast Cancer

research A discrete transition zone between cuticle and cortex layers of a human hair fibre: changes observed in the presence of breast cancer

1 citations , October 2017 in “ecancermedicalscience”

Breast cancer alters specific molecular structures in hair, which revert after cancer removal.

research Scanning electron microscopes/silicon drift detector-energy dispersive spectroscopy: An analytical tool to identify waterborne microminerals pickup in human scalp hair cuticle due to water quality

1 citations , January 2018 in “Journal of microscopy and ultrastructure”

The method can identify minerals in hair from water, and using coconut oil or conditioner can prevent mineral buildup.

research SEM/SDD-EDS—An analytical tool to identify water borne micro minerals pick up in human scalp hair cuticle due to water quality

May 2017 in “Journal of microscopy and ultrastructure”

Water quality affects mineral content in hair, and coconut oil can protect against damage.

research Adhesion Failure of External Hair Cuticles Caused by Prussian Blue: Possible Electrochemical Roles of Sulfur and Cystine

July 2016

Prussian Blue causes hair cuticles to detach, weakening the hair.