Mix hair color with confidence

Your professional hair color companion

Exact bowl mixes, client records, and before/after photos—built for stylists at the chair. Formulate with confidence, document every transformation, and replay any mix anytime.

The Formula app showing a ready-to-mix bowl formula with shade codes and developer

How It Works

Walk through a simple four-step wizard—from consultation to a ready-to-mix formula. When a result isn't achievable, The Formula tells you why so you can adjust before you open a tube.

  1. 1

    Select your brand

    Choose your professional color brand and product line from searchable, brand-native catalogs.

  2. 2

    Capture hair state

    Enter starting level, tone, and gray coverage using visual swatch cards—at a glance behind the chair.

  3. 3

    Choose a target shade

    Pick from shades filtered to what's actually feasible for the hair you're starting with.

  4. 4

    Get your bowl mix

    Receive shade codes, ounce amounts, developer volume, and processing time—ready to mix.

Built for the Chair

Designed for licensed professionals and salon colorists—not DIY home color. From consultation to bowl to documentation, everything is built around how you actually work.

Exact Bowl Mixes

Shade codes, ounces, developer volume, and processing time in one view—with multi-bowl support for complex formulas.

Visual Hair-State Picker

Level, tone, and gray coverage at a glance—capture starting hair state in taps behind the chair.

Feasibility-First Shades

Only see target shades that can work for the hair you're starting with—no guessing before you mix.

Every Client, Every Formula

Client profiles with contact info and consultation notes—formulas linked to clients or saved in your personal library.

Document Every Transformation

Before and after photos in grid, timeline, and side-by-side views—each linked to the exact recipe.

Replay Any Mix, Anytime

Full formula history—search by client or shade and jump back to a recent mix without digging through notes.

See It In Action

Your day, organized—clients, formulas, and quick actions one tap away.

Ready-to-mix formula with shade codes and developer amounts
Exact bowl mixes in seconds
Visual hair state picker for level, tone, and gray coverage
Capture hair state in taps
Target shade selection filtered to feasible options
Only shades that can work
Client profile with formulas and consultation notes
Every client, every formula
Before and after photo timeline linked to formulas
Document every transformation
Formula library organized by client
Replay any mix, anytime
The Formula welcome screen
Your professional hair color companion

Formulate with Confidence

Download The Formula—your professional hair color companion for stylists at the chair.

Download on the App Store