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What is keratin?
Keratin is an extremely strong protein which is a major component in skin, hair, nails, hooves, horns, and teeth. Most of the keratin that people interact with is actually dead, hair, skin, and nails are all formed from dead cells which the body sheds as new cells push up from underneath.
If the dead cells are kept in good condition, they will serve as an insulating layer to protect the delicate new keratin below them.
Causes of keratin deficiency in hair:
The reasons for the lack of keratin in hair can be attributed to the heat and UV rays from the Sun and from some substances present in water such as, salt and chlorine. These are natural factors that we are exposed to in our daily life. However, the unnatural factors that cause keratin deficiency are the chemical ones dyes, highlights, perming, and straightening of hair. This results in a dull, tangled, brittle and dry hair.