Knowledge Base
Technical instructions remain close to INJIR HAIR products, while articles, videos, masterclasses and protocols are collected at the Axiom System Academy in section INJIR PRO.
Answers built to be checked, not merely repeated
Each page starts with a concise answer, then explains the mechanism, limitations, professional reasoning and sources. These pages are available without registration.
What Is an Acidic Color Remover?
Why “acidic” does not mean that acid itself dissolves permanent oxidative color.
Read the explanation →02 · CHOOSING THE MECHANISMREDOX or Bleaching?
Two different chemical tasks: artificial color and the actual lightness of the base.
Compare →03 · CONTROLWhy Does the Color Come Back?
Reverse oxidation, residual dye and control before the next color formula.
Understand the cause →04 · BLEACHINGHow Do You Choose a Developer?
Why developer strength is only one factor — and why “more is better” is the wrong logic.
Open the guide →ARTX or NATURE?
When to choose a permanent ammonia color system and when an ammonia-free color is the better fit.
Compare systems →06 · GRAY HAIRHow to choose a color system for gray hair?
The choice depends on the percentage of gray hair, the coverage goal and the desired density of the result.
Open the guide →07 · PROTECTIONHow to protect hair during bleaching?
What actually affects damage risk: diagnosis, concentration, processing time and the correct protection protocol.
Read the guide →08 · NAVIGATORHow to choose a hair color system?
Permanent, ammonia-free, acidic or direct pigment: the choice starts with the task, not the shade name.
Choose a system →Product and instruction here
The composition, purpose, proportions, applications and restrictions remain on the grocery and process pages of the store.
Open instructions →Articles, videos, and reviews — in Academy
The teaching materials are not duplicated between two sites. INJIR PRO is a single training library.
INJIR PRO →Instructions
Rules for dealing with specific products and professional lines.
Open instructions →02 · ACADEMYProtocols
INJIR HAIR operating sequences and process diagrams.
Open in Academy →03 · ACADEMYVideos and masterclasses
Practical demonstrations, color reviews, flushing, blonding and care.
Look at Academy →04 · ACADEMYArticles INJIR
Professional articles on products, technologies and choice of system.
Read in Academy →05 · IN SEITIngredients and technologies
Reference explanations for REDOX, oxidation, direct pigments and conditioning systems.
Open directory →