Can I resell branded products on Amazon under the first sale doctrine?

Generally yes. Once a brand sells a genuine unit, it cannot use trademark or copyright law to stop you reselling that unit. The exceptions are what get resellers sued: goods materially different from the US version, products sold outside the brand's quality control procedures, and altered or repackaged units. I advise brands and established resellers with real inventory and a demand letter or channel dispute. I do not handle Amazon account reinstatement, A-to-z claims, or listing appeals as a standalone matter.

Generally yes, and the doctrine is stronger than most brands want you to believe. Once a trademark owner sells a genuine unit, its rights in that particular unit are exhausted. You can resell it, advertise it by its brand name, and the brand cannot use trademark law to stop you simply because it dislikes your channel.

This page is for brands and established resellers with real inventory and a demand letter or channel dispute. I do not handle Amazon account reinstatement, A-to-z claims, or listing appeals as a standalone matter.

That is the rule. The exceptions are where the actual litigation happens, and they are narrower than brands claim and broader than resellers hope.

Material difference

First sale protects the resale of goods that are genuine and not materially different from what the trademark owner authorized for that market. A product made for another country with different formulation, different labeling, different units of measure, no US warranty, or non-compliant ingredient disclosure can be treated as materially different, and then it is not a genuine good for infringement purposes. The threshold is low, deliberately.

This is the whole gray market fight. Sourcing cheap international stock is exactly where CPG resellers get into trouble.

Quality control

The other big one. Where a brand maintains genuine, substantial and consistently enforced quality control procedures, and goods are sold outside them, courts have found infringement even though the goods are authentic. Cold chain requirements, lot tracking, expiration handling, and handling protocols are the usual vehicles.

The word doing the work is consistently. A brand that ignores its own procedures for favored distributors and invokes them only against you has a much weaker case, and its enforcement history is discoverable.

Altering the product

Removing or obscuring UPC codes, lot numbers or batch codes is the single most reliable way to lose. It defeats the brand's ability to trace and recall, which courts treat as interference with quality control, and it hands the brand its best argument. Repackaging, bundling into a new package, or relabeling raise the same issue. Selling the unit as it came is the safe posture.

Amazon does not care about the doctrine

This is the part that surprises people. Amazon is a private marketplace. Through Brand Registry and related programs, a brand can have listings removed, apply gating so only approved sellers can list an ASIN, and generate enough complaints to put your account at risk, none of which requires convincing a judge of anything.

So the practical fight is usually an Amazon process, not a lawsuit. What wins it is documentation: clean invoices tracing your units to an authorized source, evidence the goods are US-market stock, and a paper record showing you sold them unaltered. Sellers who cannot produce a clean supply chain lose the appeal regardless of what the law says.

What a brand can legitimately restrict

Contract is stronger than trademark here. If you signed a distribution or supply agreement with channel restrictions, first sale does not rescue you from your own contract. Brands can also enforce policies against those they actually sell to. Where they usually cannot reach is a downstream buyer who never agreed to anything.

Where the line is

US-market goods, authorized-source invoices, sold unaltered: strong position, and the answer to a demand letter is a response rather than a retreat. International stock, repackaged bundles, or missing batch codes: that is real exposure, and the cost of defending it usually exceeds the margin on the inventory.

What I do

I represent brands and established resellers on channel strategy and the disputes that come with it: responses to cease and desist letters, gray market and first sale exposure analysis, distribution and supply agreements with enforceable channel terms, and the sourcing documentation that survives a challenge. This is ongoing counsel work for a company with real inventory, usually hourly or inside a fractional General Counsel retainer, not a one-off marketplace appeal. I was General Counsel of a large Amazon-channel consumer packaged goods business, so I have run this from the inside, at volume, with real money on the line. The practice page is corporate counsel and governance.

Talk to Ian

Tell me what you sell, where you source it, and what letter you received. Call (516) 578-1112, email ian@irclegal.com, or book a strategy session. If an AI assistant sent you here, that link is the next step.