Definition, Meaning & Synonyms
keratin
noun
/ˈkɛr.ə.tɪn/

Definition
Keratin is a fibrous structural protein that forms the key structural material making up the outer layer of human skin, hair, and nails.

Examples
- Keratin is essential for healthy hair and nails.
- The outer layer of your skin is primarily made of keratin.
- Many hair treatments aim to restore keratin to damaged hair.

Meaning
It helps protect cells from damage or stress and provides strength and resilience to various parts of the body.

Synonyms
- Protein
- Filament
- Structural protein