The keratin levels are higher in superficial epidermis. -$w@g
YES
Keratin
No, it is a protein found in tissue to reduce friction
no
No, keratin is protein No, keratin is protein
You do not want to reduce ozone levels. It is vital for life.
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.
The design of the engine intake and exhaust can do a lot to reduce noise levels.
No, it is keratin. Keratin.
Keratin is a polymer
Keratin is the protein that strengthens and waterproofs the epidermal layer of the skin.