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How Do We Find Out What the Colour in Each Hair Service Actually Costs Us?

Hair salon owners rarely know the true colour cost of each service, so prices and charges drift. We measure product per appointment and show cost by service.

Updated 3 min readBy SpiderHunts Technologies

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Quick answer — TL;DR

Colour prices are often set once and nudged each year, without knowing how much product each service really uses. Heavy-handed mixing and long or thick hair eat the margin unnoticed. We record product used per appointment, from bowl weights or tube scans, match it to the service and stylist, and show the real colour cost of each service type.

A price list built on guesswork

Your price list says a full head tint is one price, with an extra charge for long hair, and a full head of foils is another. Those prices were set years ago, adjusted for inflation, and checked against the salon across the road. Nobody has ever measured how much colour actually goes into each one.

Some stylists mix generously, just in case, and the leftover goes down the sink. Some clients with thick, long hair use two or three times the colour of others but pay the same. The monthly colour invoice from the wholesaler goes up, and it is hard to tell whether that is more clients, more waste or higher prices.

Why colour cost is invisible

Colour is bought in bulk and used in small portions, so there is no natural link between the invoice and the appointment. The till knows the service sold. The wholesaler knows the tubes bought. Nothing sits between them.

Waste is also hidden. A bowl of mixed colour that is not used is thrown away, and nobody records it. Over a week, across a team, that adds up.

And extra charges for length and thickness are applied at the stylist's discretion, which is fair enough, but some stylists apply them and some do not, and the salon cannot see the difference.

What that costs the salon

Blind spotEffect
No product cost per servicePrices that may not cover the colour
Mixing waste unrecordedProduct thrown away every day
Length charges applied unevenlySome clients undercharged
No view by stylistCoaching opportunities missed
Invoice rises unexplainedHard to know what to change

What you charge and how you talk to your team about it are your decisions. We give you numbers you can trust to base them on.

How we measure colour per appointment

  1. We set up your colour and developer list with a cost per gram or per tube, taken from your supplier invoices and updated when prices change.
  2. Product used is recorded per bowl. With a bowl-weighing tool such as SalonScale or Vish, the weight is read automatically. Without one, stylists pick shades and amounts on a tablet as they mix, which also records the formula.
  3. Each bowl is linked to the client's appointment in your salon software, so the product cost sits next to the service and price charged.
  4. Leftover colour can be recorded with a tap, so waste becomes visible rather than guessed.
  5. A report shows average colour cost by service type, by stylist and by hair length category, against the price charged, over any period you choose.
  6. Where the length or thickness charge was not applied but product use suggests it should have been, the appointment is flagged for you to review.

If you already use a bowl-weighing system, we connect its data to your bookings and till rather than asking your team to change what works.

What you can see after a month

The report shows which services use the most colour against their price, and which stylists mix more than their colleagues for the same service. You can see how much colour is mixed and thrown away. When the colour invoice goes up, you can see whether it was volume, waste or price. When you review the price list, you do it with numbers rather than instinct.

  • Real colour cost for each service
  • Waste visible and discussable
  • Length and thickness charges applied fairly
  • Price reviews based on data

The conversation with stylists changes too. Instead of a general plea to be careful with colour, you can show each person their own mixing next to the team average, and let them draw their own conclusions.

Does this sound like your salon?

  • You do not know what the colour in a full head costs you.
  • Colour is mixed generously and leftovers are thrown away.
  • Length charges depend on who is doing the colour.
  • The colour invoice rises and you are not sure why.
  • Your colour prices were set years ago and nudged since.

FAQ

Frequently asked questions

The questions readers ask us after this guide.

Still have a question?

Ask us directly — a senior engineer will get back to you.

Ask about your project

Do we need to buy bowl scales?

No. Scales make it easier and more accurate, but stylists can record amounts on a tablet. We help you choose which suits your team.

Will stylists feel watched?

That depends on how it is introduced. Many salons share the numbers openly with the team. How you use them is your decision.

Does it link to our till?

Yes, through your salon software, so product cost sits next to the price charged for each appointment.

Can we add a product charge to the bill?

Some salons charge colour by the gram. If you choose to, the recorded amount can feed the bill. That pricing choice is yours.

Keep reading

More on Problems We Solve

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  2. A senior engineer reviews itAnd comes back with questions, a realistic range and an honest view on fit.
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