How Much Inventory Do You Need to Open a K-Beauty Store?

An opening plan reaches us most months with the same shape. Four hundred and something lines, a first order built to fill every shelf to the back wall, and a total that would have covered the first year of rent. The shelf count is usually about right. The order behind it is usually close to double what the shop needs to trade.

Our position, from the supply side: a first shop needs roughly 200 to 300 lines, two to four units of each, and a third of the inventory budget still unspent on opening day. Breadth is what makes a Korean skincare shelf work. Depth is what makes it expensive.

The short version

• A first Korean skincare shop trades on roughly 200 to 300 lines at two to four units each, with about a third of the inventory budget still unspent on opening day.
• Korean Air Cargo bills air freight on actual or volumetric weight, whichever is higher, at 6,000 cubic centimetres to the kilo, so 650 units spread over 216 lines and 650 units spread over 60 lines fly at the same price.
• Article 19(1)(c) of Regulation (EC) No 1223/2009 requires a minimum durability date on the pack, or the period-after-opening symbol where durability exceeds 30 months, and that clock starts at the factory.

The fixtures set the SKU count

Count the linear metres of shelving that will actually carry product. Not the window, not the till counter, not the storeroom.

Then measure five boxes you intend to sell and average their width. Korean skincare cartons mostly sit between 4 and 6 cm, which puts a shelf metre at 16 to 20 facings before you allow a single gap. Twenty metres of shelving is therefore somewhere near 360 facings.

Now stop treating a facing as a line. Give the ten or fifteen products you have the most conviction in two or three facings each so they read as heroes, and leave roughly a tenth of the shelf deliberately empty for whatever you reorder in week five. Twenty metres lands at about 216 lines. That number came out of your own fixtures, which is the only place it can come from. How those lines get grouped once they arrive is a separate job, and the subject of building your first K-beauty shelf.

Two hundred lines one deep looks like a Korean skincare shop. A hundred lines three deep looks like a pharmacy end cap that happens to stock sheet masks. Customers in this category shop by browsing, and the second and third items in the basket are usually lines they had never heard of when they walked in. Every product you carry is a test you are running, and on a first order you have no results yet, so buy the widest set of tests the shelf and the money will hold.

Depth is where the cash dies

Two to four units per line on a first order, counting the one on the shelf. Six to twelve on the small handful you have real reason to believe in, which for most people means the lines a supplier says its other retail accounts reorder, not the ones with the best photography.

Nobody publishes sell-through rates for individual K-beauty lines in European shops, so no source is going to tell you how deep to go. Ask a supplier which products get reordered most often by shops your size, and treat that as the closest thing to data that exists.

The usual argument for depth is freight, and it does not survive contact with a carrier tariff. Korean Air Cargo publishes the rule in one line: 6,000 cubic centimetres counts as one kilo, and the bill follows actual or volumetric weight, whichever is higher. A cubic metre of air cargo is charged as 167 kilos however light it is, and boxed skincare never approaches that density. Freight follows the cubes you ship, so 650 units spread over 216 lines and 650 units spread over 60 lines fly at the same price. What does reward size is the fixed tail: documentation, handling, clearance and the broker land once per shipment whatever it holds. That argues for consolidating your reorders into one shipment a month. It does not argue for buying a year of cover before you have sold anything.

The second reason depth is expensive is printed on the pack. Article 19(1)(c) of the cosmetics regulation requires a minimum durability date unless durability runs beyond 30 months, in which case the pack carries the period-after-opening symbol instead. Either way the clock started at the factory and not at your door. Stock bought in month one and sold in month fourteen has spent thirteen of those months ageing in your storeroom, and sunscreens and anything making an active claim are what customers turn over to check.

The two mistakes cost very different money

Run out of a line in week three and the cost is the margin on units you did not have, plus a reorder you were going to place anyway. Buying inside Europe, the gap closes in one cycle. It stings, it is cheap, and you now know that line sells.

Over-buy and the cost compounds in three directions at once. The cash is gone, it went into products you picked before meeting a single customer, and recovering it means discounting, which trains your customers to wait for the next discount and drags the price perception of everything around it down too. Reference and strikethrough prices are regulated in the EU as well, so markdown is not a free lever for clearing a mistake, which is a subject of its own.

Buying direct from Korea sharpens the problem before it helps, because minimums are set per line and per box quantity, so breadth multiplies against a minimum you cannot break. People respond by deleting lines instead of trimming depth, which is the wrong half of the order to cut. That trade is worked through in the direct versus EU wholesaler math, and for a first order it usually points at Europe.

So the most useful rule we have concerns money you do not spend. Hold at least a third of the inventory budget back until week six. The first order is a hypothesis and the reorder is where you act on the answer, and a shop that spent everything on opening day has bought itself the right to watch its best-selling line stand empty for two months.

For a sense of scale, DOUGLAS reported inventories of EUR 821.3 million at 31 March 2025 against EUR 1,443.7 million of purchased goods in the six months to that date, in its own half-year report. That is roughly fifteen weeks of stock for a chain that took EUR 2.59 billion, knows precisely what sells in every store and can reorder in days. The division is ours, both figures are theirs. A new shop cannot reorder that fast and should carry more, but the ceiling is four to five months of planned sales, not twelve.

The ten minute sizing worksheet

Paper and a calculator. Do it before you open a supplier price list, so the catalogue cannot set the number for you.

1. Shelf metres. Measure the linear metres of fixture that will hold product. Call it M.
2. Facings per metre. Average the width in centimetres of five boxes you plan to stock. Divide 100 by it. Call it F. Most people land between 16 and 20.
3. Facings. M x F. Twenty metres at 18 gives 360.
4. Lines. Facings divided by 1.5, because your heroes take two or three. Then take off ten percent for shelf you leave empty on purpose. 360 facings gives 240, then 216.
5. Units. Lines x 3. Give six to twelve units to no more than fifteen products and one or two to everything else, and the average lands near three. 216 lines gives about 650 units.
6. Cash at cost. Units x your average cost per unit, taken from the middle of a price list rather than its cheapest line.
7. Cash at retail. The same units at your planned shelf prices.
8. Cover check. Cash at retail divided by planned monthly revenue. Above five, cut. Above eight, you are funding a warehouse.
9. Reserve check. Inventory budget minus cash at cost. If what is left is under a third of the budget, cut the order rather than raising the budget.
10. Date check. Any line where units divided by expected monthly sales comes out above six is too deep, whatever discount the case quantity carried.

When it does not fit, cut depth before you cut lines. Halving the back stock across 216 products frees the same cash as deleting 70 of them, and only one of those two decisions can be undone with a reorder.

Questions buyers ask

How much does it cost to stock a K-beauty store?

Nobody can give a figure without your fixtures and your price list, and any number quoted before those two exist is a guess dressed as advice. Run the worksheet above to a unit count, then multiply by an average unit cost taken from the middle of a supplier's price list rather than its cheapest line. A shop with 20 metres of shelving lands near 650 units, and the opening order should take no more than two thirds of whatever the inventory budget is, because the reorder around week six is where the money starts working.

How much shelf space do I need for 200 products?

Work the worksheet backwards. Two hundred lines at an average of 1.5 facings each is 300 facings, plus a tenth of the shelf left deliberately empty, so about 330 facings in total. At 16 to 20 facings per shelf metre, which is what 4 to 6 cm Korean skincare cartons give you, that is 17 to 21 linear metres of product-bearing fixture.

When should a new K-beauty shop place its first reorder?

Around week five or six, once every line has had a fair run in front of real customers and the sold-out lines have declared themselves. Reorder what emptied first and add the lines your supplier says its other retail accounts keep coming back for. Consolidate the reorders into one shipment a month, because documentation, handling and clearance are charged once per shipment regardless of what is inside.

Sources

• EUR-Lex, Regulation (EC) No 1223/2009 on cosmetic products, 2009
• Korean Air Cargo, Air Cargo Tariff, read 2026
• DOUGLAS Group, half-year report for the six months to 31 March 2025, May 2025

Facts checked on 1 September 2026 against Regulation (EC) No 1223/2009, Korean Air Cargo's published tariff and the DOUGLAS Group half-year report for the six months to 31 March 2025.