This method is based on chemical permanent hair straightening, having hair additionally treated by a stream of hot air. This is a relatively costly process, though it is less aggressive than the chemical permanent hair straightening method. This procedure is performed in beauty salons and hairdresser shops. A mixture of chemical substances is applied on the hair, and then the hair is flat ironed with a hair straightener using a neutralizing agent.

The result is long-term – very effective until the hair grows back.

The Japanese hair straightening method cannot be used for treatment of thin, weak, breaking off hair, as well as not being recommended for hair treatment during pregnancy and nursing periods. Plus, it does not bring satisfactory results when treating blonde and/or dyed hair.

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When permanent hair straightening is not recommended?

The procedure of chemical straightening

Pros and cons of permanent straightening