Greying Hair is a naturally occurring phenomenon that inevitably happens to all of us at one point or another, preferably later than sooner, but what exactly causes grey hair and can it be stopped once it starts?

The answer depends greatly on many factors, nutritional deficiencies, genetic predisposition and of course, aging! Lets take a closer look at a hair follicle. As you can see from the photo below, a hair follicle is made up of keratin in three layers - cuticle, cortex and medulla.

The cuticle is a set of tightly woven, overlapping scales that encapsulates the cortex and medulla. This is the part of the hair shaft that can be manipulated by styling products.

The second part is the cortex. This part represents the majority of the hair shaft. Pigments cells are what gives you your unique hair color and these are found throughout the cortex and medulla. The cortex also houses melanin, also known as color pigment.