Stocksy
Hair straightening treatments are nothing new.
Japanese hair straighteningalso known as thermal reconditioningcreates permanent pin-straight strands.
However, we’re here to talk about Japanese hair straightening treatments.
Stocksy
“It is irreversible and will stay straight until the hair is grown out.”
As with all chemical hair treatments, Japanese hair straightening has drawbacks to be wary of.
Read ahead for their tips.
Designed by Byrdie
Meet the Experts
What Are the Benefits of Japanese Hair Straightening?
For those looking for super-straight hair, thermal reconditioning is a godsend.
Plus, she says that hair will never get frizzy.
What Are the Potential Drawbacks of Japanese Hair Straightening?
And remember, all the hair that’s been treated will be depleted of any existing body.
Byrdie Tip
Select a stylist who is experienced in Japanese hair straightening.
With keratin treatments, Hong says results last up to four months.
Japanese straightening, on the other hand, creates completely pin-straight strands.
Furthermore, Hong says that treated hair won’t be able to hold curls or waves.
What Is Formaldehyde?
A colorless, strong-smelling chemical used as a preservative and binding agent.
It can be found in products like particleboard, glue, and cosmetics.
Like a perm solution, a neutralizer is applied, which “freezes” the style in place.
Hair is then rinsed and conditioned again before blow drying straight and taking a flat iron through it.
The entire process is labor and time-intensive.
Gueldner says to avoid hot-styling tools if possible.
Key Takeaways
How Long Do Japanese Hair Straightening Results Last?
It chemically changes the structure of your hair while the other smoothing treatments coat it," says Gueldner.
2014;70(6):384-386.
2022;114(12):1636-1645.
National Center for Biotechnology Information.PubChem compound summary for CID 712, formaldehyde.
Updated May 3, 2024.
