Patient discussion about keratin

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Q. skins does excrete oil and keratin what exactly is the whitish cape up that you can squeeze out from underskin

AIt sounds like you refer to sebum, an oily substance secreted by (how surprising :) ) sebaceus glands attached to the hair root. It's important for the skin, although abnormal secretion of it may cause diseases such as acne.

You may read more here:
http://en.wikipedia.org/wiki/Sebum#Sebum
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