Keratin is formed by keratinocytes. Keratinocytes are living cells that make up a large part of your hair, skin, nails, and other parts of the body. These cells slowly push their way upwards, they die and form a protective layer of cells. Several thousands of them are shed every day, and this process may be accelerated by various medical conditions like psoriasis. If the external keratin layer got damaged it may result in unhealthy of flaky look of skin, hair, and nails.
A lot of people complain about their hair and nails being dry and brittle. This happens because the dead keratin is being pushed to great lengths; but there’s a way to grow out your hair and nails and keep them healthy at the same time – eat food like gelatin and moisturize the hair and nails on regular basis.
Generally speaking, the thicker the layer of keratin, the healthier the hair or nails are; outside dead cells protect the living cells at the core. By moisturizing the external layer of keratin you will keep it healthy and also prevent it from cracking and splitting, whether the keratin is forming your nails, hair or skin
