SHEET /m/keratin · MoleculeFinder curated (no single PubChem compound) · REV 2026.07
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Keratin
from sourceprotein · body endogenous
What is Keratin?
The tough protein of hair, nails, horn, and the outer layer of skin. Its strength comes from sulfur bridges between cysteine amino acids. from source
CategoryBody
No single structure
Keratin is a protein: a large folded chain of amino acids. It has no single 2D or 3D structure, molecular weight or SMILES, so MoleculeFinder models it by hand.
ClassProteininferred
Where you'll find it
Your own body makes this one. It is not an ingredient you buy. See the rest of the body group.
Compare with
Sources & methodology
- Data refreshed