What's actually changing
Amazon is winding down its in-house FBA prep service for sellers, with a hard cutoff on January 1, 2026. After that date, sellers will be expected to send inventory to FBA fully prepped — labeled, polybagged, expiration-marked, and bundled per Amazon spec — or use a third-party prep service to do it for them.
For supplement, beauty, and DTC brands selling on Amazon, this isn't a minor logistics tweak. It's a structural change to how FBA inventory flows, and the brands that don't have a prep partner lined up before Q4 2025 inbound starts will scramble through the highest-volume quarter of the year.
What the in-house service used to cover
Amazon's FBA Prep service has historically offered three kinds of help:
- FNSKU labeling — applying Amazon's required barcode
- Polybagging and bubble wrap — for items needing protection or suffocation warnings
- Bundling — combining multiple SKUs into a single offering
All three are going away as Amazon-provided services on January 1, 2026. Amazon will continue to receive prepped inventory, but won't apply prep to incoming shipments. Sellers must arrive ready.
Why Amazon is doing this
Three reasons, in roughly equal weight:
- Cost. Prep is labor-intensive and Amazon's cost-per-unit on prep has crept up faster than the fees they charge sellers for it. Outsourcing the work to third parties shifts the cost off Amazon's P&L.
- Quality control. Bad prep causes customer-facing issues — wrong items, damaged packages, expired SKUs slipping through. Letting specialized 3PLs handle prep raises quality and shifts liability.
- Service Provider Network growth. Amazon has been pushing its SPN-listed prep partners hard since 2023. Forcing the issue accelerates SPN adoption.
What it means for sellers
The practical impact depends on what you sell:
For supplement, beauty, and liquid SKUs
This is where the impact is highest. Amazon's prep team historically rejected 3–5× more units in these categories than the marketplace average — fragile packaging, expiration date complexity, hazmat classification, and lot-tracking requirements all trip up generic prep. After January 1, you'll need a prep partner who actually knows your category.
For everyone else
Mostly an annoyance, but a manageable one. Generic prep services exist at every price point. Most Amazon sellers shipping non-regulated, non-fragile products will switch prep partners and continue.
Timeline you need to plan around
Working backward from January 1, 2026:
- October–November 2025 — Q4 inbound peak. If you don't have a prep partner by October, you'll either prep your own peak inventory in-house (most brands can't) or you'll skip Q4 selling on Amazon.
- August–September 2025 — Vetting + onboarding window for a new prep partner. Standard onboarding is 30 days. Add another 2 weeks of validation runs before peak.
- June–July 2025 — Last realistic window to evaluate prep partners without rushing. After this, supply outstrips demand and the good partners stop taking new clients before peak.
If you're reading this in Q1 or Q2 2025, you have time. If you're reading it in Q4 2025, you're already late and need to move now.
How to choose a prep partner
Five questions that filter the field fast:
- Are they on Amazon's Service Provider Network (SPN)? Not strictly required, but signals Amazon has vetted them. Findable directly through Seller Central.
- What's their FBA rejection rate? The industry average runs ~3%. Specialized prep partners — the ones who handle supplements, beauty, hazmat — should be under 1%. If they can't quote a number, that's the answer.
- Do they handle your category specifically? Liquid prep is different from apparel prep is different from supplement prep. A "we can prep anything" answer means they probably haven't built specialized SOPs for any single category.
- What's their inbound-to-FBA SLA? Best operators run under 48 hours from receipt to outbound. Slower than 72 hours and you'll feel it during peak.
- Lot tracking and expiration handling? Mandatory for supplements (FDA traceability), beauty (MoCRA in 2026), and any food product. Asking this surfaces whether they've built for compliance-heavy categories or just SKU volume.
Why supplement and beauty are most affected
Three structural reasons:
First, expiration dates. Amazon requires expiration marking on every prepped unit for supplements, food, beauty, and OTC. Generic prep services frequently mislabel expiration dates or apply them in formats Amazon's systems reject. Specialized prep services have SOPs that match Amazon's exact spec.
Second, hazmat classification. Aerosols, alcohol-based perfumes, nail polishes, certain cosmetic actives — all require hazmat-aware prep and shipping. Generic prep services often refuse these or charge premium fees that wipe out margin. IATA-certified prep partners handle hazmat in-house at standard rates.
Third, lot tracking. Beyond what Amazon requires, supplement and beauty brands need lot-level traceability for FDA compliance, recall readiness, and (for cosmetics) MoCRA's 2026 effective date. A prep partner that captures lot data on inbound is doing FDA work for you. A prep partner that doesn't is making you do it twice.
What Launch's prep service does differently
We're an Amazon SPN-listed prep partner that operates from a single facility built for supplement, beauty, wellness, and DTC categories. Specifically:
- Under 0.5% FBA rejection rate across our supplement and beauty FBA volume (vs ~3% marketplace average).
- Triple-seal liquid protocol for hazmat/aerosol/alcohol-based SKUs — gets through FBA receiving without rejection.
- Lot tracking on every inbound — captured at receiving, available to your QA team on demand. MoCRA-aligned.
- 24–48 hour inbound-to-FBA SLA standard, with rush options for inventory emergencies.
- Bundle creation for both physical bundles and Amazon's virtual bundle catalog setup.
- Direct-ship to multi-FC per Amazon's assignment — tracking through to FC receiving.
If you're rebuilding your FBA prep partner stack ahead of January 2026, start with an SPN-listed specialist who handles your category. See our FBA Prep service page or request a quote based on your monthly inbound volume.
The bottom line
This is a real change with real timeline pressure. Most sellers will land softly because generic prep is a commodity service. Supplement, beauty, and liquid sellers won't — those categories need specialists, and the specialists are filling up fast.
If your brand falls in those categories, the right move is: vet 2–3 specialized prep partners now, run validation inbound in summer 2025, lock in capacity for Q4. Brands that wait until Q4 to pick a partner will pay peak-season pricing and accept whoever still has open capacity.