Why is hair straight or curly?We have all asked ourselves why we have such straight or curly hair. As you must already know, the nature of your hair depends on your genes. Several studies have been conducted on this subject. The results were unequivocal and the genetic factor accounts for at least 80% in the heritability of your hair type.But how do some hair types start to coil while others don't?
Everything is played out at the hair follicle-level. It is the hair follicle that will define whether your hair will be curly or not. The follicle is located under the skin and it is here that hair is made in an area called the bulb. This hair then passes through a sort of tube. It is this tube or tunnel that will give your hair its final shape.
There are several types of follicles. People with curly hair have asymmetrical follicles and people with straight hair have symmetrical follicles. For straight hair, the shape of the follicle is round, which allows the hair to grow straight and to remain so in the tube. Conversely, for curly hair, the shape of the hair follicle is curved and oval. In this case, the hair grows curved. In concrete terms, the more warped the follicle is, the more your hair will form a spiral, which will determine your hair type: curly, coily, kinky or straight.
But it is the keratin that will have a determining role on the shape of your hair. At the time of growth, the keratin contained in your hair is not organized evenly. If your hair follicle is round, the keratin, the backbone of your hair, is evenly distributed along the shaft. On the other hand, for curly hair, the keratin does not diffuse in the same way. This is why, as soon as the hair shaft emerges on the surface of the scalp, internal tensions are expressed and the hair curls.
Why is coily hair more fragile?
Coily hair is more fragile due to the numerous spirals it contains: "Inside coily hair, there are spirals. This introduces points of fragility where the hair can break. Coily hair is therefore more fragile than straight hair.”
Hair can also become brittle more quickly if you don't take care of it. For example, color treatments, salt or curling irons tend to damage the hair much more. This is why it is important to take care of it.
  At Kairly Paris, we have developed specific hair products for curly, kinky and coily hair. We have formulated hair care products that enhance and respect your hair.
Conceived, created and manufactured in France, all our treatments, routines and products are inspired by nature.
Discover all of our hair care products, now, to strengthen, magnify and preserve your curls. We have created many customized hair routines to meet your needs: dry hair, hair lacking hydration, routines for locks or color-treated hair ... you will find what you are looking for.
 Feel free to find us on social media, Facebook, Instagram, and on the other blog posts.. You will find tips and routines to take care of your hair: to help it grow, to protect it, to nourish it, to hydrate it, to avoid breakage, to make it strong and shiny. See you soon! Crédit photos: ISTOCK |