For reference: New Zealand · seven days.
I have two candidate explanations and no way to distinguish them.
The same procedure has worked without incident several times previously, which argues against technique.
Should I be treating this as a failure or as noise?
7 days is about 5 working days once the weekends come out, and a customs queue runs on working days. The restatement matters: 7 days of silence feels like a decision, and 5 working days is usually a queue. Under a working week, nothing has yet happened that needs explaining. Routine clearance, a document query that has not reached you, and a hold all look identical from a tracking page at this stage. The tracking page is not the record. The record is the notice, and a notice arrives on paper or in a portal, not as a status change. Ask the carrier for the entry number and whether a query has been raised against it, in those words — "where is my parcel" gets the tracking page read back to you. And write the 7 days down somewhere durable now: if this becomes a dispute, the timeline is the thing you will be asked for and the thing nobody kept.
Start with the fact that a customs hold is an administrative event with a defined process, not an enforcement action by default.
The commodity description on the declaration is what drives classification. A vague description invites a query; an accurate one is processed on the classification it deserves.
Worth being precise here: duty and import tax thresholds vary by country and by value, and are separate from any question of whether the goods are permitted. Paying a charge is not an admission of anything.
Import duty and tax thresholds are published per jurisdiction and are independent of whether goods are permitted.
Keep every document. It is the only record that will exist.
Analytical standards and reagents with traceable certificates. Every quantitative result you read inherits the accuracy of the standard behind it.
Shop standardsThe underlying point is that this is an area where calm process knowledge is more useful than either reassurance or alarm.
A seizure notice, where one is issued, is a formal document with a stated basis and a response deadline. It is worth reading carefully and, if the amount matters, worth advice.
Most holds are documentation queries: an incomplete description, a missing value, an unclear commodity code. They generate a request for information and resolve when it is supplied.
Ask how the consignment will be described before you order. It is the variable that matters.
edited 8 Aug 2026 by syringe_ninety — added the placebo-arm figures
Answering this needs the destination, because customs regimes differ enormously and generic advice is close to useless.
Suppliers differ in how they complete documentation and members have reported markedly different lane behaviour as a result. Asking how a consignment will be described is a reasonable pre-order question.
Keep the documentation. Invoice, declaration, tracking history and any correspondence — if something needs resolving later, that record is what resolves it.
Most holds are documentation queries. Supply the documentation.
Ask PeptideStack is a static archive. Posting is closed, but the norms are worth stating: answer the question that was asked, show your working, cite the trial or the certificate, and say plainly where the evidence runs out.