Keratin is a tough, waterproofing protein. Keratin is secreted by the cells of the epidermis (the outermost layer of skin).
which is a protein that makes the skin waterproof
A tough protein called keratin.
keratin
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Keratin
Keratin is the protein that strengthens and waterproofs the epidermal layer of the skin.
Tough. Protein is a nutrient, so if you're talking about pure protein, that's probably only available in powder form . So in a drink, I guess.
Keratin- fibrous protein that makes up human skin, nails, hair etc.
Fingernails (and hair and horns) are made of keratin, a tough insoluble protein.
Keratin
Keratin is a waterproofing protein. Keratin is produced by keratinocytes. Keratinocytes are in the epidermis This is what makes us waterproof and keeps us from absorbing water.
It is called Keratinocyte, which is in the outermost layer of the epidermis.