<> 1. HOW TO PROCESS & COLOR H/HAIR
( Special Preparations, Bleaching, Dyeing, Conditioning, Tangle Removal, etc)
We train SPECIAL SECRET -Treatment for producing lightest colors (#60, #613, #26, #24, #22) from natural dark colors of raw human hair

We closed our hair processing factory since C-19 pandemic breakout, 2021.
And so, we do not provide Full Hands-On-Training (Full Offline Training) in Korea which was done with 100 Liter containers and over 10 Kgs of human hair brought by each trainee.

Semi Offline Training: We provide Semi-Offline Training which will be done with (1) manuals written (revised about 1,000 times for over 20 years) by John Yim in English & (2) videos filmed & edited by John Yim with (3) addition of briefly performing Visual & Physical Demonstrations in our training center or office with small amount of real human hair (you bring, about 1 Kg in total ), small amount of real relevant chemicals, relevant machine and tools for a short time each working process or treatment.

John Yim will keep providing After-Training Technical Support (Q & A) service by email, WhatsApp, phone at no additional charge for years (or forever).

Online Training: We provide (send by UPS) Full Online Training material set made up of (1) the manuals written by John Yim and (2) training scene videos filmed by John Yim & edited by John Yim for each of ex-trainees (3) reference materials for future Q & A (technical support).

John Yim will keep providing keep After-Training Technical Support (Q & A) service by email, WhatsApp, phone at no additional charge for years (or forever).


<> Prices or Training Fee will be quoted by email on your requests.

The enrollment can be made by payment by advance T/T(30% ~ 100% of ) the training fee to our company bank account.

We would show all the process steps & technical data only at our class, but not on this web site.
We trainin you how to process raw hair for 2 cases, 10 Kgs at a time and 1 Kg at a time each process or treatment.
 
This class contains Special Preparations, Washing ( for supply of raw hair), Bleaching, Dyeing, Tangle-Removing, Hair-Intenerating(Softening), Hair-conditioning for Silky & Soft, Reversed hair Treatment, and other Secret techniques.
How to distinguish Remy Hair from Non Remy Hair ( Indian hair, Chinese Hair, Vietnam hair, Indonesian hair,Russian hair, European Hair, etc)
How to distinguish Pre-dyed hair or Pre-Bleached hair from Human hair supplied as Virgin hair or Unprocessed hair
How to wash & clean Raw Hair
How to remove human hair tangle-frees
How to remove LICE-NITS from Hair
How to condition human hair for Quality-up
How to color (dye) human hair with and without cuticles on
How to process H/Hair to be suitable for making Weft, Pre-bonded hairpiece, Wigs, Hair,Toupee, etc
How to make human hair soft, smooth, silky: We have 4 kinds of treatment methods.
(1) Chemical Method,
(2) Physico-Chemical Method,
(3) Physical Method,
(4) After-Processing Conditioning with our John HairCoats.
How to dye (use) Natural hair with (lots of) GREY hair/ Tangled hair/Pre-dyed hair/Hennaded hair
How to bleach & color (dye) keeping Cuticles remaining without Tangle-Free & Over-Treated
1) Single drawn Raw Remy Human Hair ( China origin)
2) Single drawn Raw Remy Human Hair ( India origin) ( This technique works for European hair
How to bleach & color (dye) keeping no Cuticle without Tangle-Free & Over-Treated
1) Double drawn Raw Remy Human Hair ( China origin)
2) Double drawn Raw Remy Human Hair ( India origin) ( This technique works for European hair )
How to bleach & color (dye) Raw Human Hair mixed with dyed hair without Tangle-Free & Over-Treated
How to bleach & color (dye) Raw Human hair with wave Tangle-Free & Over-Treated
How to bleach & color (dye) long Human Hair such as 20", 24" or longer Tangle-Free & Over-Treated
How to bleach & color (dye) short Human hair such as 8" or 10", etc. Tangle-Free & Over-Treated
How to bleach & color (dye) for Dark Colors
#1, #1B, #4, #6 ( Black, Dark brown)
How to bleach & color (dye) for Medium Colors 1
#8, #33
How to bleach & color (dye) for Medium Colors 2
#10, #12, #30
How to bleach & color (dye) for Light Colors 1
#14, #27
How to bleach & color (dye) for Light Colors 2
#613 (Lightest Blonde), #60 ( Grey)
We train SPECIAL SECRET -Treatment for producing lightest colors ( #60, #613, #26, #24, #22) from natural dark colors of raw human hair
What to bring when you come to us for our class
Your human hair & etc ( ? )
Equipments & Tools for processing & dyeing Human hair
( We inform after enrollment or class)


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Mob & WhatsApp (Mr. John Yim): +82-10-8686-1313