How to manage product stock in a beauty salon
Selling retail in a salon is a genuine profit opportunity — and it is also the easiest place for money to leak away unnoticed.
Separate what you sell from what you consume
A salon holds two kinds of product: what is sold to the customer, and what is consumed in the service — colour, developer, towels. Mixing them ruins every figure.
What is consumed in a service is a service cost that reduces its margin; what is sold is separate revenue with its own cost. A salon counting colour as retail believes its retail is larger and its service margin higher — and both numbers are wrong.
Tie the deduction to the sale, not to the stocktake
The method that works: the quantity drops the moment the product is added to the customer bill, not at a monthly count. A stocktake tells you ten units are missing; it does not tell you who took them or when.
When the product is a line on the same bill as the service, the deduction happens by itself — and you learn which product each barber sells.
Know your cost, not just your price
Product profit = selling price − actual purchase cost. And that cost moves: one delivery at thirty-five, the next at forty.
If you always use the latest purchase price you will overstate or understate depending on which way prices are moving. It is sounder to consume deliveries in the order they were bought, so each unit is counted at its own cost.
⚠️ When retail is a hidden loss
Three cases. Dead stock you bought for a thousand that has sat on the shelf a year — frozen money, not profit. A product you pay so high a commission on that nothing is left for you. And a product you are competing on against a pharmacy at a higher price, so nobody buys it.
Work out turnover for each line: how many times you sold its stock in a year. Anything turning less than twice does not deserve its shelf.
In short: Deduct at the sale rather than the stocktake, separate consumed from sold, and work out turnover per line.