hair

Also known as hairs

Hair is a protein filament that grows from follicles found in the dermis. Hair is one of the defining characteristics of mammals. The human body, apart from areas of glabrous skin, is covered in follicles which produce thick terminal and fine vellus hair. Most common interest in hair is focused on hair growth, hair types, and hair care, but hair is also an important biomaterial primarily composed of protein, notably alpha-keratin.

AI overview

Hair is a protein filament that grows from follicles in the skin and is one of the defining characteristics of mammals. People are commonly interested in hair growth, types, and care, though hair also serves as an important biomaterial made primarily of protein.

AI-generated from the Wikipedia summary — may contain errors.

Key facts

Anatomy.Name: Root of the hair
Anatomy.Latin: radix pili
Anatomy.Greek: θρίξ (thríx)
Anatomy.Image: Gray944.png
Anatomy.Caption: Section of skin, showing the epidermis and dermis; a hair in its follicle; the arrector pili muscle; sebaceous glands.
Anatomy.Image2: File:CSIRO ScienceImage 8115 Human hair and Merino wool fibre.jpg
Anatomy.Caption2: Scanning electron microscopy image of Merino wool (top) and human hair (bottom) showing keratin scales
Anatomy.System: Integumentary system

via Wikipedia infobox

Research

118,151 papers

Exosomes for hair growth and regeneration.ReviewJournal of bioscience and bioengineering · 2024Zhou Y, Seo J, Tu S et al.DOI: 10.1016/j.jbiosc.2023.11.001
Hair Biology: Growth and Pigmentation.ReviewFacial plastic surgery clinics of North America · 2018Park AM, Khan S, Rawnsley JDOI: 10.1016/j.fsc.2018.06.003
Healthy hair: what is it?ReviewThe journal of investigative dermatology. Symposium proceedings · 2007Sinclair RDDOI: 10.1038/sj.jidsymp.5650046
A Review: Hair Health, Concerns of Shampoo Ingredients and Scalp Nourishing Treatments.ReviewCurrent pharmaceutical biotechnology · 2015Chiu CH, Huang SH, Wang HMDOI: 10.2174/1389201016666150817094447
Beard Hair Transplantation.ReviewFacial plastic surgery clinics of North America · 2020Bared ADOI: 10.1016/j.fsc.2020.01.010
Status of research on the development and regeneration of hair follicles.ReviewInternational journal of medical sciences · 2024Liu D, Xu Q, Meng X et al.DOI: 10.7150/ijms.88508
Oxidative stress in hair follicle development and hair growth: Signalling pathways, intervening mechanisms and potential of natural antioxidants.ReviewJournal of cellular and molecular medicine · 2024Du F, Li J, Zhang S et al.DOI: 10.1111/jcmm.18486
Coconut, Castor, and Argan Oil for Hair in Skin of Color Patients: A Systematic Review.Journal of drugs in dermatology : JDD · 2022Phong C, Lee V, Yale K et al.DOI: 10.36849/JDD.6972

via PubMed

Wikidata facts

Image: Borsten ausgewachsenes Mangalitza-Schwein.JPG

Show 4 more facts

Commons category: Hair
NCI Thesaurus ID: C32705
hashtag: hair
P8168: Castelbajac

Sources (8)

via Wikidata · CC0

~42 min read

Article

38 sections

Contents

Overview
Meaning
Etymology
Description
Root of the hair
Natural color
Human hair growth
Texture
{{anchor|classification}}Classification systems
Andre Walker system
FIA system
Composition
Functions
Warmth
Protection
Touch sense
Eyebrows and eyelashes
Evolution
Evolutionary variation
Texture
<span id="curly"></span>Curly hair
The EDAR locus
Disease
Hair care
Removal practices
Shaving
Waxing
Laser removal
Cutting and trimming
Social role
Indication of status
Religious practices
In Arabic poetry
See also
References
Citations
Sources
External links

Attitudes towards different forms of hair, such as hairstyles and hair removal, vary widely across different cultures and historical periods, but it is often used to indicate a person's personal beliefs or social position, such as their age, gender, or religion.