Peptide kits of 10 vials, explained

A peptide kit is a sealed carton of 10 vials, one compound, one size, one lot, and it is the smallest unit sold on this site. Here is what that means for a reseller or a lab planning an order.

What a peptide kit is

On B2B Kits, a kit is a sealed carton of 10 vials: one compound, one size, one lot. We do not sell single vials and we do not split kits — a kit always arrives sealed and complete, with the lot certificate of analysis for those 10 vials packed inside.

Kits of 10 vials are the building block for every order. A 50-kit minimum order can be one SKU at 50 kits, or a spread across several compounds and sizes. See how to buy research peptides wholesale for the order process end to end.

The word “kit” has one meaning here: it never refers to an assortment of different compounds boxed together, and it never refers to a partial vial count. One kit is always 10 vials, one compound, one size, one lot.

Kits vs. single vials vs. bulk powder

Some suppliers sell single vials, and some sell bulk powder by the gram, outside any vial or kit packaging. A kit sits between the two: it is packaged into finished, labelled vials like a single-vial purchase, but sold and priced by the carton like a bulk order.

For a reseller, that means stock arrives ready to list and ship as individual vials once the order is broken down, without the step of filling and labelling vials from bulk powder. For a lab standardizing a project on one lot, a kit keeps every vial in that project on the same lot certificate, rather than drawing from several bulk lots over time.

Bulk powder also shifts weighing, vialing and labelling work onto the buyer, along with the equipment that work requires. A kit moves that work upstream, to before the carton is sealed, so what arrives is already in finished, labelled vial form under one lot record. Sourcing single vials from several small listings, rather than one kit, usually means several different lot numbers in the same stock position, each with its own certificate, if a certificate exists at all. A kit avoids that by design: ten vials, one lot, one certificate.

The per-vial math inside a kit

Because a kit is 10 vials at one price, the per-vial cost is simply the kit price divided by 10. That math is the same at every tier — Standard, Volume, or a custom quote above 500 kits — only the kit price itself changes with volume. See tiers, margins and the order math for a worked example with illustrative numbers.

The retail list price shown next to a kit is a reference point only, so a reseller can see the room between the wholesale per-vial cost and where a vial might list — it is never a charge on your order.

This is also why tier planning matters before you submit an order sheet: moving from Standard to Volume lowers the kit price, which lowers every per-vial figure built on it, across every vial in every kit on that order, not just the kits added to cross the threshold.

Why one lot per kit matters

Every kit is one compound, one size and one lot, never a mix of production runs in the same carton. That matters because the certificate of analysis packed inside is written for that specific lot: the purity and identity results on the paper match every vial in that carton, not an average across several lots.

It also matters for traceability. If a question ever comes up about a kit, the lot number on the carton and on the COA point to one defined batch, not a mix of batches that would be harder to trace back.

One lot per kit also makes a reorder simpler to evaluate. If a new lot's COA reads differently from the last one you bought, you are comparing two clearly defined, single-lot results against each other, not trying to work out which vials in a mixed carton might explain a difference.

Labelling: what's on the carton and in the kit

Each kit carton is labelled with the compound, the size and the lot number. The lot certificate of analysis is packed inside the kit, carrying the same lot number as the carton, so the paperwork and the product can be checked against each other on arrival.

This holds across every format in the catalog — a kit of lyophilized vials, a kit in spray format, or a kit of bacteriostatic water is labelled and lotted the same way. Whatever the format, the carton, the vials inside it and the COA should all reference one lot number, and that number should be the one you record against that stock position once the order is broken down for resale or for a project.

Mixing kits on one order

Kits of different compounds and different sizes mix freely on a single order. A 50-kit minimum does not mean 50 kits of one SKU — it can be any set of kits from the catalog that adds up to 50, or past 100 for Volume pricing. Build the set you need, submit it as a PO at /order, and the pro-forma invoice that comes back covers every kit on that order at the same tier.

There is no cap on how many different SKUs can appear on one order, only the kit-count minimum at the bottom and the tier breakpoints above it. A reseller building out a catalog for the first time, or a lab stocking several projects at once, can use that freedom to order exactly the mix it needs rather than rounding up on a single SKU to clear the minimum.

For laboratory research use only. Not for human or animal consumption.

Questions