Keratin is a protein naturally found in the body. It is one of the main components in hair, nails and the skin’s top layer, the epidermis. It is a component that is generally associated with hair health.
Keratin provides structure to the hair from root to tip (it makes up 80% of the hair fibre). The hair cuticle made up of keratin-containing cells is responsible for protecting the inside of the hair and maintaining its colour and shine.
Inadequate brushing, or external factors such as pollution or heat from hairdryers and straighteners, cause the cuticle to deteriorate and make the hair look dry, fragile and porous.
There are cosmetic products that provide plant-based keratin from the outside and strengthen the hair shaft. These can help to achieve softer, shinier, less frizzy hair and can help soften curls in curly hair.
Plant-based keratin can also be present as an ingredient in some dietary supplements for hair health that can help to strengthen the hair from the inside.
