Japanese straightening is a straightening technique for lightly wavy as well as very curly hair. This complex technique modifies the texture of the hair from the inside for effective and long-lasting straightening. Here is everything you need to know before choosing the yuko system!

Japanese smoothing, also called Yuko System, is a smoothing method developed in Japan by Yuko Yamashita, and which has seduced the whole world. It offers a very good result, even on very curly hair. Japanese straightening is a product kit that will modify the nature of the hair from the inside, in depth.

This is why it is better to favor a Japanese straightening at a professional despite the homemade kits, because it is preferable to carry out a diagnosis with a professional to judge the quantity of product and the exposure times necessary to straighten the hair without damaging it. . Admittedly the operation is much less expensive at home, but straightening in the salon is the guarantee not to damage your hair. For a Japanese straightening with the yuko system in the salon, count 300 € to 800 € depending on the length of your hair.

Before applying the Japanese straightening, the hairdresser performs a pre-smoothing shampoo and possibly a repairing treatment targeted on the damaged areas, if the hair is damaged. These pre-treatments aim to protect hair that is already weakened.

Then the hairdresser applies Japanese straightening, which consists of ammonia and thioglycolic acid. It is necessary to leave for a certain time depending on the length and nature of the hair, regularly checking the elasticity of the hair. The product in fact makes the hair very elastic, which will relax the curls and smooth the hair.

The product is then rinsed, before drying and straightening the hair. Depending on the salon, a fixing treatment can be applied before or after straightening. After following the Yuko System, your hair is smooth for 6 months to a year, depending on your hair type and its regrowth. On some very frizzy or very curly hair, it sometimes takes two Japanese straightenings for perfectly straight hair, but this rarely happens.

Japanese straightening is not for all. On colored, bleached, highlighted hair, whether it is homemade coloring, henna, or salon coloring, the yuko system is strongly discouraged. On colored hair, straightening may discolor and further damage the hair fiber. Result: dry hair, with frizz and a straw effect.

Likewise, for frizzy hair which is fine and very fragile, it is better to carry out an accurate diagnosis before taking the plunge so as not to damage or break your hair. For weakened hair, it is better to opt for a Brazilian straightening, much gentler on the hair.

On the other hand, if you have curly or wavy hair, Japanese straightening works great, with smooth, soft hair for at least 6 months! Your hair will then require little maintenance: as the hair is modified from the inside, the yuko system is resistant to washing, swimming, perspiration or lacquered hairstyles.

It’s not just women who dream of beautiful, smooth and soft hair. Japanese straightening for men works just as well as it does on women. If you have curly or wavy hair but crave straight, manageable hair, the yuko system can be a great solution.

The procedure is the same as on a woman, however the duration of the Japanese straightening can be shorter if you have a short cut: the hair being cut very regularly, the regrowth is quickly visible. Be careful, however, Japanese straightening will not take on hair that is too short: it takes at least 2 to 5 cm in length.