Planning Your Black Friday Cosmetic Inventory: How Much Should You Manufacture?

Let’s stir up some magic in the lab with today’s hot topic: how much cosmetic inventory should you actually manufacture for Black Friday?

Black Friday can be incredibly exciting for a beauty brand. Your website traffic climbs, customers finally try the products sitting in their baskets, gift shoppers discover you for the first time and your bestsellers suddenly start disappearing from the shelves. Beautiful.

Until you realise you manufactured 200 units of the product everybody wants and 700 units of the one nobody is buying.

Black Friday cosmetic inventory planning is a balancing act. You want enough stock to take advantage of increased demand without investing an uncomfortable amount of cash into products that could still be sitting in your warehouse next spring.

And the stakes are becoming increasingly interesting for beauty brands. NielsenIQ reported that Health & Beauty sales in Belgium increased by 39% year on year during Black Friday Week 2025, reaching €69 million, with body care and hair care among the strong-performing segments. Around 38% of sales value came from discounted products.

Internationally, the picture is equally interesting. Shopify merchants generated a record $14.6 billion during Black Friday-Cyber Monday 2025, an increase of 27% compared with the previous year.

So yes, Black Friday can absolutely represent an important sales opportunity for cosmetic brands. But strong consumer demand does not mean you should manufacture everything you can afford.

We need a forecast.

Preferably one that does not involve crossing our fingers and ordering 1,000 moisturisers because it “feels about right”.

Start With Your Own Sales Data, Not Someone Else’s Black Friday

The most useful information for forecasting your Black Friday cosmetic inventory is already sitting inside your business.

Start by looking at how many units of each product you normally sell.

Imagine your bestselling facial serum sells approximately 80 units per month. Your body cream sells 45 units, your cleanser 60 and your hair mask 25.

If you participated in Black Friday last year, even better. Look at units sold per SKU, revenue, average order value, discount level, traffic, conversion rate, stockouts and how quickly sales happened.

Then ask an important question: what will be different this year?

Perhaps your email list has doubled. Maybe your Instagram audience is considerably larger. Perhaps you are investing €2,000 in advertising when you spent €300 last year. Maybe you are launching a stronger offer, collaborating with an influencer or introducing bundles.

Those changes should influence your Black Friday inventory forecast.

Simply manufacturing twice your normal stock because “Black Friday is busy” is not forecasting. It is optimism wearing a spreadsheet.

A Simple Way to Forecast Black Friday Cosmetic Inventory

You do not need an enormous corporate forecasting department to make a sensible estimate.

Let’s say you normally sell 100 units of your moisturiser per month. Last November, your Black Friday campaign generated 160 moisturiser sales. This year, your customer base is larger and your marketing is stronger, so you reasonably forecast 200 units during the promotional period.

You could then add a modest safety stock.

For example:

Forecast demand: 200 units

Safety stock at 15%: 200 × 0.15 = 30 units

Target inventory: 230 units

If you already have 40 saleable units available, your production requirement becomes:

230 target units − 40 existing units = 190 units to manufacture

Your safety stock percentage should not automatically be 15%. A brand with highly predictable repeat purchases may use a different buffer from a new cosmetic startup launching its first Black Friday campaign.

The important point is that your manufacturing quantity should come from assumptions you can explain.

Those calculations make sense if you are going to manufacture yourself. However, if you are working with a cosmetic laboratory, chances are, their MOQs will be larger than 230 units and you will have to align yourself to their MOQs. But that’s okay, because that means you can already plan for Christmas too and make sure you have enough stock for Black Friday, Christmas & to carry you over the New Year as beginning of January is usually a holiday period with most suppliers and manufacturers.

And if you are manufacturing yourself, while you can make small production runs, you still have to buy raw materials and packaging in advance to carry you the entirety of Q4, including Black Friday, Christmas and the start of next year.

Do Not Forecast Every Cosmetic Product Equally

Here is where beauty founders sometimes get themselves into trouble.

Your bestseller deserves a different inventory strategy from the facial oil that sells three units on a good week.

Look at each SKU separately.

Your hero products, products with strong repeat purchase rates and proven giftable products may justify a larger Black Friday manufacturing quantity. Slower-moving products should generally receive a more conservative forecast.

This is also where bundles become clever.

Instead of manufacturing enormous quantities across ten individual cosmetic products, you could concentrate production around four or five proven products and create several Black Friday offers using combinations of that inventory.

Your cleanser might appear individually, in a skincare routine bundle and in a Christmas gift set. One inventory pool can therefore support several merchandising strategies.

This gives your beauty brand more flexibility without multiplying manufacturing risk.

Remember That Black Friday Is Becoming Black November

Another reason cosmetic inventory forecasting has become trickier is that Black Friday is no longer necessarily one Friday. This matters enormously when calculating cosmetic inventory.

If your campaign begins on November 10, continues through Black Friday and rolls into Cyber Monday, you are forecasting several weeks of promotional demand.

You also need to think about what happens immediately afterwards.

Christmas.

Selling 90% of your inventory during Black Friday might sound fantastic until you realise you have almost nothing left for December.

Your Q4 cosmetic manufacturing plan should therefore consider Black Friday and Christmas together rather than treating them as completely separate events.

Packaging Stock Can Ruin a Perfect Production Forecast

You forecasted 400 units. Your manufacturer has production capacity. Your ingredients are available.

Fantastic.

Then someone discovers there are only 217 pumps.

Welcome to cosmetic manufacturing.

Your Black Friday inventory planning should include every packaging component required to turn bulk cosmetic product into saleable stock. Depending on your product, this could include bottles, jars, tubes, pumps, caps, labels, cartons, inserts and secondary packaging.

And packaging quantities do not always align beautifully with manufacturing quantities.

Perhaps your cosmetic laboratory can manufacture 300 units, but your printed carton supplier has an MOQ of 500. That does not necessarily mean you should manufacture 500 products. It might make more financial sense to order 500 cartons, use 300 now and retain the remaining packaging for your next production batch if the design will remain unchanged (can your batch number be applied separately instead of printed on your design?)

This is one reason I love separating packaging inventory from finished-product inventory when planning production.

Packaging that can be reused in a future batch may represent relatively manageable excess stock. Finished cosmetics tie up ingredients, manufacturing costs, filling costs and packaging simultaneously.

Lead Times Matter Just as Much as Quantities

A brilliant Black Friday forecast is completely useless if you send it to your cosmetic manufacturer on November 1st.

Q4 is one of the periods when production planning matters most because beauty brands, retailers and e-commerce businesses are preparing for Black Friday and Christmas simultaneously.

Your manufacturing lead time also starts earlier than the day your formula enters the production vessel.

Packaging may need to be ordered. Ingredients may require replenishment. Labels need artwork approval and printing. Your production slot needs to be scheduled. Then there is manufacturing, filling, quality control, labelling, packing and shipping.

This is why your Black Friday cosmetic manufacturing conversation should ideally begin months before Black Friday.

If you know you are planning a major promotion, tell your manufacturer early. Even an approximate forecast is useful because it allows everybody to start planning capacity and procurement.

What If This Is Your First Black Friday?

This is where I want my newer beauty founders to resist the temptation to compare themselves with established brands.

You do not need enormous inventory to have a successful Black Friday.

If you have very little historical sales data, build your forecast using your normal monthly sales, current website traffic, conversion rate, audience size, email list, planned advertising budget and realistic promotional reach.

Then consider manufacturing conservatively.

Selling out slightly earlier than expected is not necessarily a disaster for a young cosmetic brand. It can validate demand and give you much better forecasting data for the following year.

Overproducing hundreds or thousands of units that your cash flow cannot comfortably absorb is much harder to undo.

Your first Black Friday is partly a sales event and partly a fantastic data collection exercise. Pay attention to which products sell, which bundles convert, when customers purchase, how discount levels affect demand and which marketing channels generate profitable orders.

Next year, your forecast becomes considerably smarter.

The Goal Is Not to Sell Out at Midnight

There is something wonderfully dramatic about posting “SOLD OUT” all over Instagram.

But selling out immediately can also mean you underestimated demand and left revenue on the table.

On the other hand, finishing Black Friday with enormous quantities of discounted inventory can mean you overestimated demand.

Your ideal Black Friday cosmetic inventory gives you enough stock to capture increased demand, protects your Christmas inventory, respects your cash-flow limits and avoids unnecessary overproduction.

Your job is to approach that opportunity like a business owner rather than a gambler.

Forecast from your own numbers, manufacture your strongest products strategically, understand your cosmetic manufacturing MOQ, secure packaging early, leave room for safety stock and communicate with your laboratory long before the Q4 rush begins.

Then when Black Friday arrives, instead of staring nervously at a warehouse full of moisturisers, you can focus on the fun part: watching those orders come in.

Here’s to formulas that work and brands that thrive!

From my lab to yours,

Rose