COGS is where margin lives or dies. A clean COGS number includes every direct cost between the raw material and the warehouse door — and excludes every indirect cost beyond it. The mistake most founders make is conflating COGS with landed cost or with operating expenses, which produces unit economics that don't survive an audit.
What's in COGS for a private-label CPG product:
- Raw material cost (the bulk product, ingredients)
- Manufacturing labor allocated to the run
- Primary packaging (bottle, jar, pouch)
- Secondary packaging (carton, label, induction seal)
- Tertiary packaging (case packs, master cartons)
- Inbound freight (factory to your 3PL)
- Duties and customs if imported
- Direct QC and stability testing allocated to the lot
What's not in COGS: rent on your office, your salary, marketing spend, shipping to the customer, Amazon FBA fees, payment processing, return handling, customer service. Those are SG&A.
For a typical private-label supplement at 5,000-bottle MOQ, COGS lands $2.50-6.00 per unit. The active ingredient is usually 30-50% of COGS; packaging is 20-35%; everything else fills out the rest. Cosmetics serums have similar splits with packaging often higher (premium glass costs more than HDPE bottles).