There are different types of straightening of hair, there are for all tastes. For those who like to experiment with new techniques and for those who always opt for classic treatments. There are also some for those who prefer straightening with natural products. In short, variety is what is left over when talking about types of straightening of hair. Therefore, we will explain what they are and some considerations that you should have when doing them. So that you can choose the one that suits you best. Keep reading!

Well, the basic principle of all types of straightening is the breakdown of the natural molecules present in the hair. Either a permanent or semi-permanent straightening. By breaking down these natural molecules or bonds, as it is known in English, the hair weakens and becomes smoother. Therefore, it is easier to smooth. So that the hair does not take the worst part, the secret is to do this process correctly. Applying the right steps and products. And always in the hands of a specialist.

What are the types of straightening?

Japanese straightening

This straightening was created in the mid-90s by the Japanese Yuko Yamashita. Japanese straightening is one of the types of straightening made with chemicals. It is a little more aggressive than others that use substances such as keratin. The chemical compound of this Japanese straightening is ammonium thioglycolatea type of ammonia, but of low toxicity.

Japanese straightening breaks the chemical bonds in curly hair, so it will never return to its natural state. For this reason, it is not recommended for those who want to get their curls back. Similarly, it is not recommended for people who tend to apply hair dye frequently, because it could cause irreparable damage.

The application of this straightening is very similar to that of other types of straightening permanent. First the previous smoothing cream is applied, second the hair is washed. Third, it is ironed, fourth, the definitive straightening cream is applied. The hair is then washed with a specific shampoo and finally dried.

At the end of the application of the Japanese straightening, some special considerations must be taken to guarantee its effectiveness. During the 48 hours of applying the product, the hair cannot be moistened, nor held with hooks or pigtails. This way you avoid damaging the straightening.

Although today packages are sold to be able to perform Japanese straightening in each. It is best to apply it in beauty salons specializing in these treatments. The process of applying this smoothing is a bit more complicated than others. In addition, the products used are more aggressive.

Ideal for: virgin hair, which has not received any type of straightening or dyeing and for those who do not want to return to their natural curls.

Duration: 4 to 6 months.

Brazilian straightening

It is a process that straightens the hair without breaking any of its natural molecules. In such a way that, after the duration time, it will return to its original texture. This is one of the types of straightening harmless chemicals. For its realization, keratin or keratin is used. This is a protein very similar to the one that hair naturally produces. Therefore, it does not damage the hair, but rather repairs and restructures it.

You must be very careful not to fall for imitations. Due to its growing popularity, many products have emerged that mimic the Brazilian straightening. But, these contain chemicals such as formalin, which not only cause serious damage to hair, but to health in general.

As explained by the stylist Valeria Costa for Glamor magazine in Spain, «the authentic Brazilian straightening (or progressive pick) does not damage the hair, nor does it change its structure, it is compatible with other chemical processes, restructures the strand, eliminates frizz and leaves hair completely healthy, repaired and a spectacular shine one hundred percent guaranteed”.

Some of the considerations that must be taken with the Brazilian straightening are: after applied, the hair cannot be washed with the usual shampoo, it must be washed with one that does not contain salt (sodium chloride). Dyes should not be applied before straightening, because it can change the tone. Be very aware of allergies to product ingredients and protect the skin during application. It is not recommended to apply it more than once a year.

Ideal forAppearance: Slightly wavy, fluffy or previously treated hair. It will not work well on very strong curls.

Duration: 3 to 4 months approximately.

chemical straightening

This is one of the types of straightening most permanent of all, so it is the one that dreams of causing the most damage to the hair. The chemical used in this treatment «relaxes» the curls and breaks down the natural molecules of the hair. For this reason, only the hair that is being born is the one that will be curly, the rest of the hair will remain straight.

In addition to the chemical aggressiveness of this treatment, the main problem is when it has to be applied to growing hair. Because that hair tends to be superimposed on areas that already have the product and that entire area is seriously affected. In this type of chemical straightening, post-treatment care is essential to maintain the health of the hair.

The procedure is similar to the previous ones, washing, application of the previous product, application of the straightening product and ironing.

Ideal for: very curly or wavy hair.

Duration: until the hair grows.

photonic straightening

This, like the Brazilian straightening, also uses keratin. Its name is due to the fact that a photon light (blue light) is used to fix the treatment and help the hair straighten more quickly.

The main advantage over the others is that it can be applied to all types of hair, including bleached and dyed hair. In addition, not only does it straighten the hair, it also repairs it and allows it to recover its health. In addition to this, the hair can be wet just hours after applying the straightening.

Ideal for: all types of hair, even dyed and bleached.

Duration: 3 to 5 months


Taninoplasty is one of the types of straightening It does not use chemicals to straighten hair. Neither formalin nor any chemical component is used in this treatment. For this reason, its results are less aggressive with the hair, it transforms and revitalizes it, making it look beautiful.

In this treatment the hair is straightened using natural components such as tannin. An organic substance that is extracted from the bark of trees, such as oak. This natural compound acts from within the hair, generating a protein chain within the fiber that, with the heat of the irons, allows the shape of the hair to be modified.

Taninoplasty, unlike other types of straightening that break the natural molecules of the hair, it does not break the internal bonds of the hair or damage its hair fiber. For this reason, when applying it, the hair can be collected or washed, very different from what happens with other chemical straighteners.

On the other hand, taninoplasty smoothes and aligns the cuticle, repairs the hair, prevents frizz, provides hydration, shine and softness. A great advantage is that it is not necessary to use the hair straightener, five minutes of drying and you are ready. Less iron, less damage, excellent!

Ideal for: all types of hair. It can be applied in pregnant and lactating women.

Duration: approximately 3 months

Ultimately, there are many types of straightening of hair, it will depend on your tastes and, especially on the needs of your hair to choose the most suitable. It is important to clarify that this article is for informational purposes. We advise you to go to a professional specialized in these techniques for advice. Also, if you have any condition on your scalp or are allergic to any of the ingredients in these products, consult your specialist doctor before applying them. Remember your health is the most important thing.