We often only classify hair as: straight, wavy or curly.
Many people say they have normal hair with oily skin, but then I notice that they buy shampoo for sensitive skin...
In short, there is often some confusion.
The world of hair is extremely vast, and in order to always have the best hair, you really need to know what type of hair you have.
It's really important to know what type of hair you have so you can better understand what kind of hair-care routine to adopt when washing and grooming it and, of course, to choose the right products for you without having to "try and see".
To know the "type" of hair we need to take into account several factors: scalp, texture, structure, porosity and sebaceous secretion.
This is where hair is best cared for, which is why we need to periodically check the state of our scalp.
Use a neutral shampoo and do not apply any other products. After drying we need to take a good look at the scalp.
- A smooth, light pink surface with an almost imperceptible shedding of dead cells = a scalp in excellent shape.
- Accumulations of dandruff, irritation or the beginnings of seborrhoeic dermatitis = dry scalp.
- Excessive sebum production, the base of the hair becomes greasy and often itchy. Often presence of oily dandruff due to the accumulation and greasiness of dead cells that cannot fall off = oily scalp.
- No visible abnormalities but an itchy or often burning scalp that is hypersensitive. The hair "hurts" if it is moved or tied back. Often external causes are aggressive shampoos, pollution, stress, particular medications or internal causes such as hormonal changes = sensitive scalp.
The texture is what defines straight, wavy or curly hair. We could almost say the shape.
To find out what the texture of your hair is, just use a neutral shampoo and let it air dry without brushing or applying products.
Now look at your hair when it's dry and you'll know what texture it has.
There are 12 categories: from straight to very curly.
1A Smooth and thin
1B Smooth and thick
1C Smooth and wavy
2A Sleek and wavy
2B Curly and thick
2C Curly and really thick
3A Soft curl with a large diameter
3B Spiral curls
3C Corkscrew curls
4A Tight curls
4B Z-shaped or S-shaped curls
4C Afro curls
To test the structure of the hair, we can compare it with a cotton thread of a similar colour to the hair and a hair left in the comb.
We place the hair and the thread on a white sheet of paper to compare them.
Fine hair: the hair is thinner than the thread
Normal hair: hair is like thread
Thick hair: the hair is more double than the wire
Porosity tells us the absorption capacity of our hair, i.e. how much it reacts to products and humidity.
We dip a lock of hair (taken from the hair left in the brush) in a container full of water and see what happens after 5 minutes.
If the strand of hair has sunk completely, then the porosity is high, as they tend to absorb large amounts of moisture.
If they float below the surface the level is medium.
If they remain on the surface, the porosity is low.
If your hair's porosity is high, it will definitely have small tears around the cuticle, making it dry and brittle.
To treat hair that is highly porous, it is best to use oils or butters, which film the hair and prevent it from losing any more moisture.
Use leave-in products that wrap around the hair or richer, fuller-bodied creams.
The sebaceous glands are responsible for the secretion of sebum, the substance that forms the hydro-lipid mantle.
If there is an excess of sebum, it is responsible for oily or, on the contrary, dry and dull hair.
Let's look at our hair the day after washing it with only a neutral shampoo and without having applied any products before or after.
- Dry hair: it gets dirty a couple of days after washing, but does not appear greasy. They break easily and appear brittle with split ends.
- Frizzy hair: untameable dry hair, it swells and reacts immediately to atmospheric conditions. It is brittle, dull and rough to the touch.
- Normal hair: can be washed every three days under normal conditions. It appears shiny and soft.
- Oily hair: it becomes dirty the day after washing and appears greasy at the roots.
Do you have doubts, questions or want to share your experience? Write on our socials or send us a message.