Every tool, grouped by the job

Start with diagnosis if you are unsure what you are working with. Go straight to formulation if you already know the level, the gray and the goal.

Formulation

Mix ratios, developer choice, toner picks and predicted results before anything touches the hair.

Developer to Color Mix Calculator Exact grams or ml of color and developer for any ratio, from a 10 g touch-up to a full bowl. Hair Color Mixing Calculator Mix two shades and see the resulting level and tone, plus the grams of each to weigh out. Toner Selector Pick the right toner shade and developer for lifted hair based on its level and unwanted warmth.

Diagnosis

Read the hair first: gray percentage, porosity and starting level decide the formula.

Gray Coverage Calculator How much natural base to add, which developer to use and how long to process for your gray percentage. Hair Porosity Test A two-minute quiz that tells you if hair is low, medium or high porosity and what that changes in the formula.

Service & Timing

How much product to open, how long to process and when the client should come back.

Hair Dye Amount Calculator How many grams of color to mix for a root touch-up, regrowth or full head, by length and density. Processing Time Calculator Development time for permanent color, demi, toner or bleach, adjusted for texture, gray and heat.

Color Theory

Levels, undertones and neutralizing pairs, laid out so the numbers make sense.

Hair Color Level Chart Levels 1 to 10 with their underlying pigment, how far they can lift and what it takes to get there.

On the bench

Brand-to-brand shade converter, color correction planner, bleach level predictor, salon pricing calculator and a hair color longevity estimator are being built and tested with colorists. Tools go live only after a real-formula check, so the list above is the honest list.