Jove
Visualize
Contact Us
JoVE
x logofacebook logolinkedin logoyoutube logo
ABOUT JoVE
OverviewLeadershipBlogJoVE Help Center
AUTHORS
Publishing ProcessEditorial BoardScope & PoliciesPeer ReviewFAQSubmit
LIBRARIANS
TestimonialsSubscriptionsAccessResourcesLibrary Advisory BoardFAQ
RESEARCH
JoVE JournalMethods CollectionsJoVE Encyclopedia of ExperimentsArchive
EDUCATION
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab ManualFaculty Resource CenterFaculty Site
Terms & Conditions of Use
Privacy Policy
Policies

Related Concept Videos

Confocal Fluorescence Microscopy01:16

Confocal Fluorescence Microscopy

16.0K
Confocal microscopy is an advanced microscopic technique. The prime advantage of the confocal microscope over other microscopy techniques is its ability to block the out-of-focus light from the illuminated samples using pinholes. It is widely used with fluorescence optics to obtain high-resolution, sharp contrast images. Unlike optical microscopes, confocal microscopes use a focused beam of light laser to scan the entire sample surface at different z-planes. These microscopes are, therefore,...
16.0K
Multipotency and Niche of Bulge Stem Cell01:06

Multipotency and Niche of Bulge Stem Cell

2.9K
A hair follicle or HF is a small part of the skin that produces the hair shaft. Paul Gerson Unna was the first to observe a bulge in the human hair follicle's outer root sheath (ORS). The bulge is present between the sebaceous gland and the arrector pili muscle and is the niche for hair follicle stem cells (HFSCs). The bulge is also a niche for melanocyte stem cells, and their loss results in graying of hair. The HFSCs express Sox9 and Lhx2, which help them maintain stemness and prevent...
2.9K
Classification of Epithelial Tissues: Overview01:22

Classification of Epithelial Tissues: Overview

24.1K
Epithelial tissues are classified according to the shape of the cells and the number of cell layers formed. Cell shapes can be squamous (flattened and thin), cuboidal (square-like, as wide as it is tall), or columnar (rectangular, taller than it is wide). Additionally, the nucleus shape helps identify the type of epithelial cells. Squamous cells have flattened disc-shaped nuclei, cuboidal cells have spherical nuclei, and columnar cells have elongated nuclei.
Based on the number of cell layers,...
24.1K
Changes in Skin Color: Clinical Perspectives01:14

Changes in Skin Color: Clinical Perspectives

3.6K
The first thing a clinician sees is the skin, so the examination of the skin should be part of any thorough physical examination. Most skin disorders are relatively benign, but a few, including melanomas, can be fatal if untreated. A couple of the more noticeable disorders, albinism and vitiligo, affect the appearance of the skin and its accessory organs.
Albinism
Albinism is a genetic disorder that affects (completely or partially) the coloring of skin, hair, and eyes. The defect is primarily...
3.6K
Accessory Structures of the Skin: Hair and Hair Follicles01:16

Accessory Structures of the Skin: Hair and Hair Follicles

5.2K
Hair and hair follicles are integral components of the integumentary system. Hair is a filamentous structure composed mainly of a protein called keratin. It is found on the surface of the skin throughout the body, except for areas such as the palms of the hands and soles of the feet.
Hair is a keratinous filament growing out of the epidermis. It is primarily made of dead, keratinized cells. Hair strands originate at the epidermal penetration called the hair follicle. The hair shaft is the part...
5.2K
Accessory Structures of the Skin: Hair Growth and Types01:20

Accessory Structures of the Skin: Hair Growth and Types

2.8K
Hair growth begins with the production of keratinocytes by the basal cells of the hair bulb. As new cells are deposited at the hair bulb, the hair shaft is pushed through the follicle toward the surface. Keratinization is completed as the cells are pushed to the skin surface to form the shaft of hair that is externally visible. The external hair is completely dead and composed entirely of keratin. Hair can be cut or shaven without damaging the hair structure because the cut is superficial. Most...
2.8K

You might also read

Related Articles

Articles linked to this work by shared authors, journal, and citation graph.

Sort by
Same author

Understanding Social Drivers of Health, Burden, and Impact of Hidradenitis Suppurativa among Different Racial and Ethnic Groups in the USA.

Dermatology and therapy·2026
Same author

High Curl Pattern Hair and Scalp Care Considerations to Mitigate Seborrheic Dermatitis.

Journal of cosmetic dermatology·2026
Same author

Hair morphology: An overlooked variable in alopecia drug trials.

Journal of the American Academy of Dermatology·2026
Same author

Clinical Age-reversal Quantification of a Facial Skincare Regimen with Sirtuin-targeting Ingredients in a Multiethnic Population.

The Journal of clinical and aesthetic dermatology·2026
Same author

Aesthetic Improvements Over Time: Long-Term Efficacy and Additional Outcomes of IncobotulinumtoxinA in the Simultaneous Treatment of Upper Facial Lines.

Journal of cosmetic dermatology·2025
Same author

Educating Through Engagement: Instagram as a Tool for Dermatology Advocacy.

Journal of drugs in dermatology : JDD·2025

Related Experiment Video

Updated: May 1, 2026

A New Technique for Quantitative Analysis of Hair Loss in Mice Using Grayscale Analysis
06:41

A New Technique for Quantitative Analysis of Hair Loss in Mice Using Grayscale Analysis

Published on: March 9, 2015

9.6K

Classification of High Curl Pattern Hair: A Systematic Review and Clinical Perspective.

Valerie Callender1, Cheryl Burgess2, Valerie M Harvey3

  • 1Department of Dermatology, Callender Dermatology & Cosmetic Center, College of Medicine, Howard University, Glenn Dale, Maryland, USA.

Journal of Cosmetic Dermatology
|April 3, 2026
PubMed
Summary

Hair type classification systems, like the L'Oréal Curl Classification System, offer objective criteria for personalized hair care and scalp disorder treatment. Dermatologists can use these systems to improve patient communication and treatment outcomes.

More Related Videos

Collecting Hair Samples for Hair Cortisol Analysis in African Americans
06:01

Collecting Hair Samples for Hair Cortisol Analysis in African Americans

Published on: June 10, 2018

19.7K
Author Spotlight: Increasing TMS Accessibility Through Braiding Techniques for Diverse Hair Types
04:37

Author Spotlight: Increasing TMS Accessibility Through Braiding Techniques for Diverse Hair Types

Published on: August 9, 2024

1.5K

Related Experiment Videos

Last Updated: May 1, 2026

A New Technique for Quantitative Analysis of Hair Loss in Mice Using Grayscale Analysis
06:41

A New Technique for Quantitative Analysis of Hair Loss in Mice Using Grayscale Analysis

Published on: March 9, 2015

9.6K
Collecting Hair Samples for Hair Cortisol Analysis in African Americans
06:01

Collecting Hair Samples for Hair Cortisol Analysis in African Americans

Published on: June 10, 2018

19.7K
Author Spotlight: Increasing TMS Accessibility Through Braiding Techniques for Diverse Hair Types
04:37

Author Spotlight: Increasing TMS Accessibility Through Braiding Techniques for Diverse Hair Types

Published on: August 9, 2024

1.5K

Area of Science:

  • Dermatology
  • Trichology
  • Cosmetic Science

Background:

  • Hair type classification is vital for personalized hair care and scalp disorder management.
  • Current clinical practice underutilizes standardized hair typing systems.
  • Objective classification is needed, independent of race or ethnicity.

Conclusions:

  • Existing hair classification systems can enhance dermatologist-patient communication.
  • Increased awareness of high-curl-pattern hair practices can improve treatment.
  • Curl pattern classification may aid in treating scalp diseases like seborrheic dermatitis, requiring further validation.