Weigh every gram, recall every formula, enforce every patch test
Salon Colour Bar & Formula Management turns colour-bar waste into measured cost, keeps every client’s formula on file with one-click recall, and blocks chemical service bookings until a valid patch test is confirmed.
The problem
Colour product waste is invisible: a half-used bowl is written off as cost of goods with no attribution to a stylist or a service. The exact formula for a returning client lives in one colourist’s memory, and chemical services can be booked and performed even when a client’s patch test is missing or has expired — a direct insurance liability.
The solution
Log colour-bar weighing in grams with waste and cost tracked automatically, keep a versioned formula history that recalls and compares past mixes in one click, and hard-block confirmation of any chemical service until a valid, unexpired patch test is on file — turning compliance from a record into an enforced gate.
Everything the colour bar needs
Every capability below is implemented in the module.
Colour Brand & Mixing Guidelines
Manage colour brands and developers with standardized mixing guidelines and processing-time templates, so every stylist mixes the same shade the same way.
Versioned Formula History
Every formula is saved as a new version with a visual recency indicator, so a colourist can recall exactly what was used last time with one click — even if the original stylist is gone.
Side-by-Side Formula Comparison
Compare the current formula against any past version in a single dialog, so adjustments to a returning client’s colour are deliberate, not guesswork.
Gram-Level Colour-Bar Weighing
Log grams mixed, grams applied, grams left in the bowl, developer and cost per gram on every colour-bar entry, replacing spreadsheet estimates with measured consumption.
Waste Tracking & Low-Stock Alerts
Waste is calculated automatically from every entry and attributed to the responsible stylist, with low-stock reorder alerts and a one-click mark-as-reordered workflow on back-bar products.
Patch-Test Compliance Enforcement
Record product tested, test site, wait-before-treatment hours, reaction grade and active strength, then block confirmation of any chemical service when the patch test is missing or has expired.
Compliance Red-Flags Where Decisions Happen
A clearance-to-treat status is surfaced directly on the client card and the service form, with a manager-override path for the rare exception — visible at the point of decision, not buried in a report.
Colour Cost on the Invoice
The applied formula links straight to the invoice, showing colour cost as a percentage of the service price so owners and clients see the real cost at the point of billing.
Waste & Cost KPI Reporting
Generate colorist waste and cost KPIs for any period in one click, and export the results by stylist and period for payroll reconciliation and management review.
How it works
Set up brands & guidelines
Configure colour brands, developers and mixing guidelines once, with processing-time templates ready for every stylist to use.
Record the formula & weigh the colour
Save the client’s formula with full version history, then log the colour-bar entry with grams mixed, applied and left in the bowl.
Clear the patch test
Confirm a valid patch test before the chemical service is booked — the system blocks confirmation automatically if it is missing or expired.
Bill and review the cost
The colour cost flows to the invoice and into stylist/period KPI reports, so waste and cost stay visible after every service.
Frequently asked
No sales fog. If your question isn't here, email us and we'll answer it the same way.
No. The module layers onto your existing appointment and invoicing records — it does not replace a booking engine or point-of-sale system.
Buy it on the Odoo App Store
Purchase, download and install directly from the official Odoo Apps Store — you'll always get the latest supported build.
Salon Colour Bar & Formula Management
Versioned client colour formulas with side-by-side comparison, gram-level weighing and waste tracking — with patch-test compliance enforced before chemical services.
Buy on Odoo App Store