Hair

Hair is a protein filament that grows from follicles found in the dermis. Hair is one of the distinguishing 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.

Back to The Science of Hair →

Source: Wikipedia · Image: Wikimedia Commons · Public domain

GREYCOVER

Go grey gracefully — root coverage, color-mix calculators, and silver-hair care that actually works.

Get new guides by emailOccasional emails. No spam. Unsubscribe anytime.

InformationAbout Contact Privacy Policy Terms of Service Disclaimer Affiliate Disclosure Cookie Policy

Every species, image, fact, and figure is drawn from Wikipedia and Wikimedia Commons, used under public-domain and Creative Commons licenses. No content is AI-generated.