No. Not at all. Keratin is the one of the components of the skin and helps to keep it waterproof. Our nails and hair are mostly made of keratin. The only possible danger would be if you were being charged by a rhinoceros, because their sharp horn is make of keratin. Other than that, I would not worry about it.
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No, keratin is protein No, keratin is protein
Yeah zzz
Keratin is a tough, fibrous protein. There are two types of keratin: alpha- and beta-keratin. Alpha-keratin is softer and is found only in mammals.
No, it is keratin. Keratin.
Keratin is a polymer
Keratin is the protein that strengthens and waterproofs the epidermal layer of the skin.
Keratin
Keratin
loreal has good ones.
Keratin.