Discovering Keratin

What Makes Keratin?

According to the Internet Encyclopedia of Science, Keratin is a naturally occurring protein that serves as the main structural molecule for hair, skin and nails. Keratin comes in different types, as they may come from various animal sources like birds, reptiles, shell fish and mammals. Cynthia Clark, an ehow author and contributor talks about the different types of keratin as well as their sources.

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