There are reasons why hair designers sometimes fail a heat perm.

There are reasons why hair designers sometimes fail a heat perm.

Should heat perms be done using scientific reduction heat perming? Or
Shall we do a kinky soft-heat perm on Yeonhwa?

By accurately understanding this difference and scientific theory
If it cannot be explained by chemical changes in the hair
It's difficult to reduce after-service for heat perms,
It can lead to serious customer complaints.

Hairdressers, please don't rely solely on the Yeonhwa test!
"A perm solution is a reducing agent, not just a product that softens the hair, right?"
Yeonhwa increases hair damage,
Even if the perm is restored, it can reduce the curl's elasticity and bounce.

If it gets damaged, even the next perm may become difficult.
How have hairdressers been checking Yeonhwa's condition all this time?

Around 1999, I checked the softness by pulling the hair.
When the limitations of that method became apparent, around 2010 I began folding or curling my hair.
The way to try breaking the hair wasn't accurate either, right?

So around 2015, I started wrapping it around the tail fin.
There were limits to wrapping it around the tail fin, weren't there?
So around 2020, I started checking the lotus by wrapping it around the rod.

But by wrapping it around the rod
Can the reduced state inside the hair be accurately determined?
This physical test alone cannot determine the degree of reduction inside the hair
It is difficult to make an accurate judgment.

Since 2000, Director Kim Song-jung has focused on methods that do not rely on the Yeonhwa test
Scientific, data-driven guidance to reduce failure even for beauty beginners
I have developed and taught smokeless reduction heat perming.

Why the principle and recipe of Hwanwon heat perm that Kim Song-jung has emphasized for 26 years
Are there any hairstylists who only just realized its importance?

Hairdressers!
We have been doing it repeatedly for 10, 20 years the wrong way.
Looking at the lotus is not scientifically different; it is the wrong method.


Learn as soon as possible.
Smokeless reduction heat perm + hydrogen bond threshold control!
You must accurately understand and memorize these two principles and the recipe.
Reduction state, moisture content, heat treatment temperature, and time must be controlled systematically
Reduce perm failures and after-service issues while enhancing the quality of the final result.

Heat perming is done scientifically, not by feel.
What matters more is ability than experience, and what matters more is the result.

Kim Songjeong Hair Studio Gangnam Main Branch | Directly taught by Director Kim Songjeong
26 Years of Patented Science Heat Perm Training
Who will be the next master of the heat perm?
Find the answer in Kim Song-jung’s anhydrous reduction heat perm training.