The FormulaFinder Journal
Clear answers on hair color, by brand and by shade code. For stylists and cosmetology students.
Posts
For Students
Hair Color Levels 1 to 10: A Cosmetology Student's Guide
What hair color levels mean, the underlying pigment at each level, and how to find a client's natural level, with practice questions.
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Brands and Charts
How to Read a Hair Color Chart: Levels, Tones and Shade Codes, Brand by Brand
Every brand writes its shade codes a little differently. Here is how to read levels, tones and codes on any chart, brand by brand.
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Brands and Charts
How to Read Wella Koleston Perfect Codes Like 7/43
What the numbers in a Koleston Perfect code mean: depth, main tone, secondary tone, families, and how to mix them.
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Brands and Charts
Matrix Super Sync vs Tonal Control: Which Demi for Which Job
Matrix Super Sync vs Tonal Control side by side: chemistry, lift, gray coverage, code reading and the jobs each one is built for.
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Brands and Charts
Redken Shades EQ Codes Explained: Numbers and Letters
How to read Redken Shades EQ Gloss codes: the leading zero level, every tone letter, and the shades stylists mix up most.
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Color Theory
Why Natural Roots Go Brassy With Permanent Color
Why permanent color turns virgin roots orange or gold, and when to switch the root formula to a demi at the natural level.
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Brands and Charts
Redken to Matrix Color Conversion Chart (With Formulas That Actually Work)
A real Redken to Matrix conversion chart, level by level and tone by tone, plus the four things that change the formula once you switch brands.
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Salon and Clients
The Client Sits Down and Pulls Out Their Phone
The inspo pic appears mid-service and suddenly the formula is supposed to just materialize. On the on-the-fly guessing, the app-juggling, and what finally replaced the scramble.
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