All hair is different, which is why we are all uniquely beautiful. We have different curls due to the different hair types there are.
Straight and curly hair depends on your level of follicle. A hair follicle is a very small organ underneath the skin that make hair. Strains of hair are forced through a tube which affects the hair shape and pattern, which allows it to grow. People with curly hair have asymmetrical follicle.
All together there are four hair types: Type 1, Type 2, Type 3, and Type 4. As the number increases, the curlier the hair gets. Hair Type 1, includes people who have naturally straight hair. When their hair is wet, there are no curls at all. Straight hair is hard to damage, but also very hard to hold a curl.
Type 2 is wavy hair. Wavy hair has a texture between straight and curly hair and is likely to become fizzy. In type 2, there is Wavy 2a, 2b, and 2c. Type 2a is very close to straight but has very loose waves. After Wavy 2b and 2c are very similar, and pretty much have the same pattern but Wavy 2c is more wavy than 2b.
Type 3 is curly hair. Curly hair is well known to have a “S” shape, and sometimes a “Z” shape. Curly hair has a lot of volume and most people who have curly hair have a very full head. Curly hair can be more difficult to deal with because it requires a lot of care and can often get dry. Without proper care, you will have less defined curls. There are three types of curly hair: Curly 2a, 2b, and 2c.
Type 4 is coil hair. Coily hair has very tight curls and it’s very coarse. Coily hair is usually very thick, fragile and easy to damage. Type 4 has three different types: Coil 4a, 4b, and 4c.