What is the dominant substance that makes up the hair, nails and the top layer of skin in the human body?
Show answer & explanation
Correct answer: C
Explanation
The correct answer is option 3 i.e. Keratin.
- Keratin works by smoothing down the cells that overlap to form your hair strands.
- The layers of cells, called the hair cuticle, theoretically absorb the keratin, resulting in hair that looks full and glossy.
- Keratin also claims to make curly hair less frizzy, easier to style, and straighter in appearance.