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What is Keratin April 04 2013

Keratinis an extremely strong protein that is a major component in skin, hair, nails, hooves, horns, and teeth. Theamino acidswhich combine to form it have several unique properties and, depending on the levels of the various amino acids, it can be inflexible and hard, like hooves, or soft, as is the case with skin. Most people interact with this tissue after it is actually dead; hair, skin, and nails are...
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