2026-11-07 · 7 min read

Why 1,000 units is the real minimum for custom skincare

Our minimum is 1,000 units because that is where a production run stops being dominated by changeover cost. Here is the arithmetic, and the three cases where 1,000 units is the wrong call.

The short answer: a filling line takes 2 hours to change from one product to another. Below 1,000 units, that dead time is spread across too few bottles and the unit price stops making sense for either side.

What actually happens in those 2 hours

A changeover is not one action. It is a sequence that cannot overlap:

The previous batch is cleared and reconciled, so nothing from the last customer's formula stays in the system
Hopper, pump and filling nozzles are stripped and flushed
The new bulk is transferred and the line primed until fill weight is stable
First-off units are pulled and checked against the approved sample before the run continues

None of it produces sellable product. It is pure setup, and it happens whether the run is 1,000 units or 50,000. On a 50,000-unit run, two hours is noise. On a 500-unit run, two hours is most of the day.

Why samples are free but you pay the freight

Sampling takes 3 to 7 days and we do not charge for it. A sample batch is small enough that its cost is negligible next to a production run, so we treat it as part of doing business rather than as a line item.

Freight is different. A sample is a physical parcel crossing a border, and the courier bills us in cash whether or not you place an order. So the sample is free and the shipping is billed at courier cost, with no markup and no handling fee.

If a supplier offers "free samples, free shipping", ask what the sample is. In most cases it is a stock item pulled from a warehouse, not a batch made to your formula.

The 15-day production window

Once the formula and the artwork are both locked, production takes 15 days to finished goods. That window covers bulk compounding, filling, labelling and the in-house checks before packing.

The clock does not start when you send a purchase order. It starts when the formula is signed off and the packaging is in our warehouse. In practice most of the delay on a first order is not production: it is the artwork approval loop and the packaging lead time, neither of which we control.

What 5,000 units buys you

Moving from 1,000 to 5,000 units reduces the unit price by roughly 15%. That is not a marketing discount. It is the changeover cost divided across five times as many bottles, plus slightly better bulk pricing on raw materials.

The saving is real but not dramatic. If your business case only works at 5,000 units, it probably does not work — the gap between the two price points is rarely what decides whether a brand survives.

When 1,000 units is the wrong choice

We will tell you when the minimum is working against you:

Testing five SKUs at once. Five runs of 1,000 units means five changeovers, five sets of artwork and five stability programmes. One SKU at 5,000 units is usually a better use of the same money.
Your packaging needs a custom mould. Tooling is separate from the fill minimum and can exceed the value of a small run. Stock bottles exist for a reason.
Your registration is not filed yet. Making 1,000 units before registration means paying for inventory you cannot legally sell.

FAQ

Is 1,000 units per SKU or per order?
Per SKU. Each distinct formula is a separate run with its own changeover.

How long is the whole process, from first contact to shipment?
Sampling 3-7 days, then formula sign-off, then 15 days of production. Artwork and packaging lead times sit alongside that and are usually the longer part of a first order.

Do you charge for samples?
No. The sample is free; international freight is billed at courier cost.

How much cheaper is 5,000 units than 1,000?
About 15% per unit, driven mainly by spreading the 2-hour changeover across more bottles.