You have an ASIN strategy. You have a hero image. What you do not have is a factory that takes a 500-unit PO without ghosting you in week four. Here is the path most sellers actually take to get a private-label SKU live on FBA.
// Honest read
You have run someone else's product on FBA. You have seen the margin compression up close. Reviews bleed when the supplier ships the same generic SKU to five other sellers. You looked at Alibaba, you looked at Helium 10's supplier directory, you asked in the Reddit threads. What you got back was either a US broker quoting a $25k first run on a generic capsule, or an overseas factory promising 200-unit MOQ and a six-week lead time that is, in reality, a fourteen-week lead time on a third try.
The real problem is not factory access. The real problem is brief. Most Amazon sellers walk into the manufacturer conversation with a product idea and a target landed cost. The factory wants spec: fill weight, capsule size and color, bottle dimensions, label dieline, certification stack, FNSKU position, poly-bag requirement, expiry date format, lot code position. Without that spec, the factory either pads the quote to absorb the risk or politely passes.
The second problem is what category you are actually in. Supplements live under DSHEA and 21 CFR 111. Topical cosmetics moved under MoCRA. Pet supplements live under AAFCO state-level review. Food and beverage trip into the FDA Food Facility Registration and FSMA. Each of those gates the manufacturer list you are allowed to talk to. If you skip the gate, you ship a product that gets pulled from Amazon during a category audit, not eight months from now, three weeks from now.
There are not seven steps. There are four. The other three exist to sell you a course. Run these in order.
Write the product spec the manufacturer will quote against: format, fill weight or volume, dose per serving, container, closure, label dieline, primary and secondary packaging, certification stack you need (GMP, NSF, USDA Organic, ISO 22716 for skincare). Confirm which regulatory body governs the category — FDA for supplements and topicals, USDA for some food, AAFCO for pet supplements, FTC for claims. The category gate dictates which manufacturers are eligible. Skip this and you waste three weeks talking to factories that cannot ship the SKU you described.
Three manufacturers, not eight. All three quote against the same one-page brief — same fill, same label, same MOQ window, same certifications. Now the quotes are comparable. You are looking for a 500-1,500 unit first-run window (private-label) or a 1,500-3,000 unit window (light contract manufacturing). You want the factory to break out: per-unit at the MOQ, tooling or plate fees, label print minimum, lead time from PO to ship, batch testing inclusion, COA delivery format, payment terms. Cheapest unit cost is rarely the right answer once you add tooling and freight.
Never run production from a verbal yes. Order a paid sample run — usually 25-100 finished units — at full label, full primary packaging, full COA. Hold the bottle. Smell the formula. Read the COA. Send the label to a regulatory reviewer or to a paralegal who can confirm structure-function claim compliance and the FDA disclaimer placement. Photograph the unit for your hero image and your A+ content. If the sample fails on any line, you have lost a sample run, not a $12,000 PO.
Once the sample locks, sign the PO for the production run. Ask the factory to apply the FNSKU label as part of the run (most US private-label houses do this for an extra $0.10-$0.25/unit; it is cheaper than paying a third-party prep service). Confirm poly-bag suffocation warning, expiry date on outside of carton, lot code on bottle and case, case count per master, dim weight per case. Ship the master cases direct to the Amazon fulfillment center listed in your Send to Amazon shipment. Done.
These ranges hold for a typical capsule, gummy, single-SKU serum, or topical cream sold on Amazon. Niche formats (MCT softgels, sublingual strips, multi-phase serums) push the upper bound. Numbers below are industry-typical, not a quote on your SKU. Your actual cost depends on fill weight, container, label, certifications, run size, and freight.
If a quote comes in 40% below the lowest end of these ranges, that is not a deal — that is a missing line item. Ask which line the factory dropped. Common drops: batch testing, COA, label print, FDA disclaimer review, poly-bag, expiry-date printing. All of those are non-optional on FBA.
Every line below has killed a real launch. Run a check against each one before you sign the production PO.
// Tell
The supplier promised a 200-unit MOQ on a custom-formula supplement and a six-week lead time.
// Fix
A 200-unit MOQ on a custom-formula SKU is mathematically incompatible with a working batch testing protocol under 21 CFR 111. Either the formula is not actually custom (it is private-label off a stock SKU — fine, just call it that), or the COA is fake. Ask for the test certificate from the lab. Verify the lab on the NSF or NPA registry.
// Tell
The first production run shipped, but units arrived without FNSKU labels and the carton dim weights are wrong.
// Fix
Catch this at the sample run. The sample run is when you confirm FNSKU position, poly-bag, expiry date format, carton dim weight, case count per master. Photograph the sample carton. Reuse the photo as the spec sheet for production. Most factories will quote the carton spec into the PO if you give them a photo to copy.
// Tell
The COA shows passing values, but you have never sent it to anyone qualified to read it.
// Fix
A COA is a one-page summary with assay values per active. Send it to the contract lab named on the COA and ask them to confirm the batch was tested. Most labs will confirm a real batch for free over email. Fake COAs cannot pass this step.
// Tell
The label clears legal but you discover the structure-function claim is too aggressive after the first review pulls.
// Fix
Pre-clear claims before printing the label. The FDA structure-function claim guidance is in the eCFR. A paralegal who works with supplement brands will redline a claim sheet for $200-$600 and save you a label reprint at $1,200+.
// Tell
The factory delivered, but the second order takes nine more weeks because the bottle is on backorder.
// Fix
Bottle and closure availability is the single most common cause of reorder delay. Ask your factory to either pre-stock 1.5x your run size in glass or pet containers, or specify a stock container with verified second-source supply. Stock SKUs ship in two weeks. Custom-mold containers ship in eight.
We are a sourcing brokerage. We do not run a factory. We do not take a royalty. We write the one-page spec brief, shortlist three manufacturers that match the brief, and stay on the call during sample and production. We charge a flat sourcing fee per SKU and a small spec retainer. You pay the factory directly. If your brief is wrong, we will tell you on the first call — free. If you do not need us, we will say so.
Every link below was selected because it appears in the spec flow for this buyer path. Services, industries, journal posts, and glossary entries — same content base, indexed for your stage.
The shortlist methodology in long-form.
Why 500-1,500 is the working window.
Line-by-line cost of a 1,000-unit run.
What the factory actually means by each.
Minimum order quantity.
Cost of goods sold.
Unit cost + freight + duty.
What the FBA listing actually requires.
Good Manufacturing Practices.
Current GMP, the regulatory baseline.
Certificate of Analysis. Demand one.
Per-lot lab testing — non-optional.
PO-to-ship clock. Plan for double.
What sets your real expiry date.
/ All citations verified against the issuing body's published page. Last verified: 2026-05-10.
Tell us category, format, target MOQ, certifications you need, and your FNSKU prep ask. We will come back inside 36 hours with three sourcing routes — MOQ, lead time, indicative cost on each.