Lot numbers change between orders
Two bottles bought months apart will usually carry different lots. That is how production works, not a sign of anything.
Official product information
BreathiZen Batch Verify: Check Your Bottle
Lot BRE-26/BR-7545, certificate reference BRE-7545-26-BR, and an honest account of what checking a batch number does and does not tell you.
Written and reviewed by the BreathiZen Editorial Desk · Last updated September 22, 2026
Quick answer
The BreathiZen lot number is BRE-26/BR-7545 and the certificate reference is BRE-7545-26-BR. The lot and best-before are printed on the base of the bottle when it carries them. Read both to the order desk on +1 (302) 200-3480 with your order ID and they can match the bottle to an order. No certificate of analysis has been published to us — only the reference.
Verification
Check your bottle in one phone call
The two references printed for this product
Lot BRE-26/BR-7545
Certificate reference BRE-7545-26-BR
Turn your bottle over. The lot and the best-before are printed on the base when the bottle carries them. Read both to the order desk on +1 (302) 200-3480 and they can match the bottle to an order.
What this check does
It confirms that the bottle in your hand came from an order this seller shipped. That is a narrow, useful thing. It is not a test of what is in the liquid, and we are not going to describe it as one.
What it does not do
It does not verify purity, potency or ingredient amounts. No certificate of analysis has been published to us — only the reference above. Until the document behind BRE-7545-26-BR is published, the reference is a filing number, not a test result.
Five steps
How to check a bottle, step by step
Find the lot on the base of the bottle
Small printing, usually on the underside or the lower edge of the label. A phone camera with the flash on is easier than reading it directly.
Compare it with the lot printed here
The lot we hold is BRE-26/BR-7545. If yours differs, that alone does not mean anything is wrong — production runs change — but it is the moment to call rather than guess.
Have your order ID ready
It is in the order confirmation email. The desk matches a lot to an order, so both halves are needed.
Call the order desk
+1 (302) 200-3480. Read out the lot, the best-before if the bottle carries one, and the order ID.
Ask for the certificate if you want it
Reference BRE-7545-26-BR is printed but the document has not been published to us. If enough buyers ask for it, that is how it gets published.
The honest section
What a batch number can and cannot prove
A batch-verification page is one of the easier things for a supplement site to make look impressive and one of the harder things to make genuinely useful. The impressive version has a search box, a green tick and a reassuring sentence. Ours has a phone number, because a phone number is what actually exists.
What would make this page better is not a widget. It is the certificate of analysis. A real CoA names the laboratory, the date, the tests run — identity, heavy metals, microbial limits — and the results against a specification. Reference BRE-7545-26-BR implies such a document exists somewhere. Until it is published, this page can honestly offer traceability and nothing more.
Four things worth knowing about batch numbers generally
- A lot number identifies a production run, not a single bottle.
- Two bottles bought months apart will usually carry different lots. That is normal.
- A missing lot on the base is a reason to call, not a reason to panic. Printing on curved glass fails sometimes.
- A lot number on a website is not proof of anything by itself. The check is matching it to an order that the seller can see.
What we would rather be able to show you
The full certificate of analysis behind BRE-7545-26-BR, with the testing laboratory named. It is the single document that would move this product's testing and quality score above the middle of the range, and it is the one we have asked for.
Reference
What a certificate of analysis actually contains
| Section of a CoA | What it shows | Available for BreathiZen? |
|---|---|---|
| Product and lot identity | Which batch the document describes | Lot BRE-26/BR-7545 is printed; the document is not published |
| Laboratory name and accreditation | Who ran the tests and to what standard | Not published |
| Date of testing | When the batch was tested | Not published |
| Identity testing | That each botanical is the species claimed | Not published |
| Heavy metals | Lead, arsenic, cadmium, mercury against limits | Not published |
| Microbial limits | Total counts, yeast, mould, pathogens | Not published |
| Assay / potency | How much of a marker compound is present | Not published |
| Specification and pass/fail | The standard each result is judged against | Not published |
Eight rows. One partial answer. This is the honest state of published testing for this product, and it is why we will not describe the certificate reference as third-party verification.
The honest section
Traceable is not the same as verified
It is worth separating two things that get run together on trust pages across this category: traceability and verification.
Traceability answers “did this seller ship this bottle?” It needs a lot number, an order record and someone who can match them. This product has all three, and the phone call described above genuinely works.
Verification answers “is what is in the bottle what the label says?” It needs a laboratory, a specification and a published document. This product has a reference number pointing at such a document, and nothing else.
Plenty of supplement sites present the first as though it were the second, usually by putting a lot number next to the word “verified” and leaving the reader to join them up. We are not going to do that, and if you see it done elsewhere it is worth noticing.
Best-before dates
Printed on the base alongside the lot when the bottle carries them. No shelf life is published in the material supplied to us, and no opened-bottle life either. For a botanical liquid in amber glass the sensible assumptions are: keep it dark, keep it at room temperature, and use a bottle within a reasonable time of opening rather than stretching one over a year.
Reference
Six things worth knowing about batch numbers
A lot identifies a run, not a bottle
Thousands of bottles share one lot. The number narrows a problem down to a batch, which is exactly what it is for.
Best-before is not the same as expiry
It is the date up to which the maker stands behind the product's condition. No shelf life is published for this one beyond what the bottle carries.
A website printing a lot proves nothing on its own
Anybody can print a number on a page. The check that matters is whether a seller can match your bottle's lot to your order.
Damaged or missing printing happens
Printing on curved glass fails sometimes. Call the desk with the order ID rather than assuming the worst.
Keep the lot if you ever report a problem
Photograph the base of the bottle. If you ever need to report something to the desk or to a clinician, the lot is the first thing either will ask for.
Practical
Two minutes, once
Photograph the base of the bottle when it arrives and keep the picture with the order email. That is the whole habit. It costs two minutes once and it means that if you ever need to report something — to the desk, or to a clinician — you have the lot number without having to find the bottle again.
It is the same advice we would give for any supplement, and almost nobody does it.
Questions
BreathiZen FAQ: batch verify questions
What is the lot number for?
The lot on the bottle base, BRE-26/BR-7545, identifies the production run. The certificate reference is BRE-7545-26-BR. Read them out to the order desk if you need to match a bottle to an order.
Where can I buy BreathiZen?
Through this site's order page. Breathizenlungs is the U.S. stocking partner for BreathiZen. We do not sell it on marketplaces, and we cannot vouch for a bottle bought somewhere else.
Who publishes this site?
Breathizenlungs is the U.S. stocking partner for BreathiZen. Pages are written and reviewed by the BreathiZen Editorial Desk. No individual doctor or reviewer is named here, because naming one we cannot verify would be worse than naming none.
Order BreathiZen with a traceable lot
Published prices run $49 to $89 a bottle with a 60-day money-back window. Order desk +1 (302) 200-3480.
60-day money-back window · ships from inside the US · order desk +1 (302) 200-3480