Most cost questions are asked in the wrong order. The useful starting point is not “what does development cost” but “what can this product afford to cost” — which is decided by the retail price, the channel margin and the VAT you never see.
Start with the retail maths
A £50 serum sold through a retailer is not a £50 product. Remove VAT at 20%, then the retailer’s margin, and the number left is what the whole supply chain has to live inside.
| Step | Typical assumption | Amount |
|---|---|---|
| Retail price including VAT | — | £50.00 |
| Ex-VAT | ÷ 1.20 | £41.67 |
| Retailer margin | 45–55% of ex-VAT | £18.75–£22.92 |
| Your wholesale price | — | £18.75–£22.92 |
| Target cost of goods | 25–30% of wholesale | £4.70–£6.90 |
| Fill, pack and carton | — | £2.50–£4.50 |
| Formulation and active budget | — | £2.20–£2.40 |
Selling direct-to-consumer changes the arithmetic but not the discipline: a £5 formulation budget at a £50 price point is what allows a founder to spend money on acquisition without destroying the margin.
The development budget, line by line
| Item | Range per SKU | What moves it |
|---|---|---|
| Formulation development | £3,000–£8,000 | Number of directions, actives, SPF, emulsion complexity |
| Stability and compatibility | £600–£1,500 | Accelerated protocol length, pack format |
| Preservative efficacy (challenge) | £400–£900 | Water activity, preservative system, lab |
| Microbiological testing | £150–£400 | Batch count, turnaround |
| CPSR and PIF | £250–£800 | Ingredient count, variants, complexity |
| SCPN notification | Included or £50–£150 | Who holds the Responsible Person role |
| Packaging (at 1,000–3,000 units) | £0.80–£3.50 per unit | Material, decoration, MOQ |
| Tooling, if bespoke | £0–£6,000 | Whether stock formats will do |
| Pilot batch | £500–£2,500 | Batch size, pack, whether it is saleable |
| Artwork and design | £800–£4,000 | Whether a designer already exists |
The four costs that arrive later
- Re-testing after a reformulation. A change of raw material supplier can invalidate stability and the safety assessment. Budget for one iteration; almost everyone has one.
- Reprinted artwork. A label designed before the safety report exists will usually be reprinted. At 3,000 units, that is a four-figure mistake.
- Freight, duty and import VAT. Overseas manufacture can be cheaper per unit and more expensive per landed unit. Duty on cosmetics is typically 0–6.5%, and import VAT at 20% is a cash-flow item even when recoverable.
- Packaging EPR. For plastic, illustrative Year 2 fees run to roughly £455 per tonne (amber) and £545 (red). It is small per unit — a few pence — but it is recurring and it changes with your material choices.
The cheapest quote is usually the one with the most lines excluded. Compare landed cost to a compliant, notified product, not ex-works unit price.
What a three-SKU range looks like
A cleanser, a serum and a moisturiser, 1,500 units each, stock packaging with printed labels, UK fill, one hero active per product: development, testing and compliance land in the region of £14,000–£26,000, with inventory at £12,000–£25,000 on top. The inventory is usually the larger number — which is why the first order should match sell-through rather than flatter the unit price.
Spend on the formula and the file: they are the two things you cannot fix after launch without a recall or a reprint. Save on packaging tooling and secondary packaging in the first run — both are easy to upgrade in year two, once you know what sells.
Where this sits in a real project
A written cost model is the first output of a feasibility review, before any development is authorised. The formulation and testing lines are expanded under formulation development, and the packaging and compliance lines under packaging sourcing and UK compliance. The gate checks that protect the budget are collected in the launch readiness checklist.
Questions we are asked
How much does formulation development cost per product?
Indicatively £3,000–£8,000 per SKU, with testing at £1,500–£4,000 and safety assessment and PIF work at £250–£800. Actives, SPF and complex emulsions sit at the top of those ranges. Treat them as a planning framework, not a quotation.
Which costs appear after the budget is agreed?
Four recur: artwork rework when the safety report changes the label, packaging EPR fees charged annually by material weight, a pilot batch that should have been in the plan, and freight and duty on the first stock. We quote each separately so a decision can be priced.
Can a three-SKU range share testing and assessment costs?
Partly. A shared base can share stability work, but each SKU still needs its own safety assessment, label and notification. Assuming one assessment covers a range is one of the more expensive mistakes made at planning stage.