The scales of birds are composed of the same keratin as beaks, claws, and spurs.
From the en.wikipedia.org
Rhino horns are unique, however, because they are composed entirely of keratin.
From the sciencedaily.com
Its active dye, Lawsone, binds with the keratin in skin, fingernails, and hair.
From the en.wikipedia.org
The mutation in keratin 14 changes a single amino acid, with dramatic effect.
From the nature.com
Rhino horn is made of keratin, found in human hair, and grows back after being cut.
From the guardian.co.uk
He is investigating the properties of polymers created from poultry feather keratin.
From the sciencedaily.com
Go for a keratin treatment every eight weeks while growing out your hair, says Oribe.
From the sfgate.com
Rhino horn is made of keratin, which Western doctors say has no medicinal properties.
From the independent.co.uk
Rhino horn is made of keratin, a tough protein found in human fingernails.
From the heraldtribune.com
More examples
A fibrous scleroprotein that occurs in the outer layer of the skin and in horny tissues such as hair, feathers, nails, and hooves
Keratin refers to a family of fibrous structural proteins. Keratin is the key structural material making up the outer layer of human skin. It is also the key structural component of hair and nails. ...
A protein which hair and nails are comprised of
(Keratins) Proteins which form the basis of human hair.
A tough, fibrous, insoluble protein forming hair and finger nails.
A protein present in the organic matrix of the enamel of teeth.
A surface protective agent with film-forming and moisturizing action.
Found in all the layers of the epidermis, this protein fiber that protects the skin against a range of stressors. Hard keratin is found in hair and nails. In fact, the epidermis is comprised of 95% of dead keratinocytes. ...
A protein substance which is the chief component of wool fiber.