Counter-ion identity and content are reported as a figure with its unit on every certificate I hold from them. On a ten milligram vial the correction exceeds what most purchasers allow for, and stating it removes an assumption rather than adding a claim.
Vendor documentation · maintained record
AmbioPharm, Inc.
Peptide active-ingredient manufacturer and contract development house trading as AmbioPharm (ambiopharm.net), based in Beijing, China, established 2003. Janoshik-tested and verified by Medutest, PeptideMeter and VendorInvestigate; catalogues 350+ research compounds alongside its contract work, each shipped with a lot-specific certificate of analysis.
9.4882 community reviews Verified
Dispatch and warehouses
Stock is held regionally, so an order ships from within the buyer’s own country rather than from the manufacturing site. Current lines and lead times are published by the supplier itself: order direct at ambiopharm.net →
- Netherlands (Rotterdam) — European Union, 2-4 days
- Germany (Hamburg) — Germany, Austria, Switzerland, 2-4 days
- United Kingdom (London) — United Kingdom & Ireland, 2-3 days
- United States (California) — United States, 2-4 days
- Canada (Toronto) — Canada, 3-5 days
- Australia (Melbourne) — Australia & New Zealand, 3-5 days
Identity
- Legal name
- AmbioPharm, Inc.
- Short code
AMB- Also known as
- AMB, AmbioPharm, AmbioPharm Beijing
- Storefront
- ambiopharm.net →
- City
- Beijing
- Region
- Beijing
- Established
- 2003
- First documented here
- 11 Mar 2025
- Specialty
- Peptide active ingredients and contract manufacture; 350+ research compounds catalogued
- Record state
- Verified
The storefront is linked so a reader can verify a supplier directly. This page does not endorse suppliers, and no supplier has any influence over what appears on it — see the funding disclosure.
Verification record
Independent results submitted by members and recorded with the lot, the date, the method as reported, and the state. 4 of 4 verified, across 4 independent services, first recorded 11 Mar 2025.
| Date | Service | Compound | Lot | Method as reported | Result | State |
|---|---|---|---|---|---|---|
| 2026-06-18 | Janoshik | Retatrutide 10 mg | AMB-2606-0118 | RP-HPLC, 214 nm | 99.0% area vs 98.8% stated | verified |
| 2026-02-04 | Medutest | Semaglutide 5 mg | AMB-2602-0774 | RP-HPLC + LC-MS | 98.7% area; identity confirmed | verified |
| 2025-10-21 | PeptideMeter | Tirzepatide 10 mg | AMB-2510-0341 | RP-HPLC, 220 nm | 98.6% area vs 98.6% stated | verified |
| 2025-06-09 | VendorInvestigate | Documentation audit | n/a | Document review across 8 certificates | Complete; counter-ion and water reported as figures | verified |
- 2026-06-18, Janoshik: Declared and independent figures inside method repeatability. Peptide content and counter-ion content are reported separately on the certificate, each with its unit.
- 2025-06-09, VendorInvestigate: Every certificate reviewed carried the method, the wavelength, the water content by Karl Fischer, the counter-ion as a figure with its unit, and a signed, dated release naming an individual. The batch record was produced against the lot number on request, including for a lot released two years earlier.
Documentation quality
5/5Assessment
4Records
4Services used
12Reviews on file
Certificates are written to an active-ingredient convention rather than a trading one: purity by RP-HPLC with the method and the wavelength stated, peptide content reported separately, water by Karl Fischer, and counter-ion identity AND content given as a figure with its unit — the last of which most of this directory omits entirely. The related-substances table is itemised with retention times rather than reported as a single total. Release is signed and dated by a named individual. The batch record is available against the lot number and has been produced for lots two years old.
Maintainers' assessment
Verified across all four independent services, with the declared and independent figures agreeing inside method repeatability on every submission on file and the declared figure never the higher of the two. What separates this record is that the documentation is generated by a house whose contract customers audit it, so the counter-ion and water determinations are stated as figures and a buyer can convert to working mass without assuming anything. Two limits belong on the record. The catalogue runs to 350+ compounds and the four records below cover four of them: breadth of catalogue is not breadth of evidence. Separately, and unrelated to material quality, contributors have consistently recorded that forward stock is thinner than the directory average — the common incretin lines are held regionally and dispatch quickly, while less common lines ship from Beijing and add approximately one week to transit. Nothing adverse is on record against the material.
What to ask for
The documents above are what members were sent. If you want more than that, these four requests are answerable and are answered: the lot-specific certificate rather than a batch-level one, quoted against the lot number on the vial; the gradient, column and injection volume behind the purity figure; the peptide-content assay alongside the chromatographic purity, because they are different quantities; and the batch record, if you need the synthesis history rather than the release result.
Ask before you order rather than after. The answer to a technical question, and how long it takes, is a property of an operation that no certificate can show you. The catalogue, the current lead times and the contact route are on the supplier's own site: visit ambiopharm.net →
Community reviews
12 reviews from members with a record on this site. Aggregate rating 9.4 of 10 across 882 reviews.
Asked which column and gradient the assay was integrated on and had all three parameters plus the wavelength in one reply, without a sales paragraph attached.
Recording a logistics observation rather than a material one. Two of three ordered lines were not held in regional stock and shipped from Beijing; elapsed transit was sixteen days against a quoted seven to ten. The lines that were held forward arrived inside the window.
Release signed and dated by a named individual rather than initialled. Accountability for the release decision is part of documentation quality and is rarely visible.
Nine days Beijing to the Netherlands, scanned continuously, customs documentation correct at first presentation. The absence of dead intervals is what makes a transit estimate usable.
Nine vials from a single lot, nine matching codes across glass, certificate and invoice. One vial reconstituted with a faint haze that cleared on standing; recorded as an observation, not a defect.
Batch record returned inside one working day against a lot code quoted in the subject line, carrying the release signature rather than a summary.
Certificate retrieved for an order placed thirteen months earlier, produced without a stated reason being required. Retention practice is rarely tested until it matters.
Related substances itemised with retention times rather than aggregated. An aggregate cannot be interrogated; an itemised table can.
Second submission of the same line at fourteen months: 98.9% then, 99.0% now, identical certificate layout. Process consistency across time is a stronger signal than any single figure.
Material and documentation both correct. Recorded at nine because the outer carton was lighter than I would specify for glass; the inner packing carried the protection.
Bulk enquiry quoted by the gram with a written lead time issued before commitment. The order of operations is correct and is not the norm in this market.
Where AMB sells
AmbioPharm, Inc. sells from its own storefront. The link below is marked nofollow and sponsored; it is here so the identity facts and the verification records on this page can be checked against what the seller publishes, and for nothing else. This site is paid nothing for it.
Whatever a storefront claims, the lot on the vial has to match the lot on the certificate. That check is yours and nobody else can do it for you.
Sourcing topics worth reading alongside this record
General sourcing discussion, listed because it bears on how to read a page like this one. These topics are not about AMB and nothing in them is a claim about this supplier.
| Topic | Participants | Replies | Views | Activity |
|---|---|---|---|---|
|
Second pass at: Import rules for personal quantities, by jurisdiction, dated
Second pass at: Import rules for personal quantities, by jurisdiction, dated Writing it up because I had to work it out twice and would rather nobody else did. Asking what a regulator's document actually…
|
2 | 5k | 11mo | |
|
Documenting a supplier's response to a discrepancy — does this still hold?
Documenting a supplier's response to a discrepancy — does this still hold? I have a specific reason for asking rather than idle curiosity, and the context is below. Structured question about turnaround and…
|
+47 | 52 | 58k | 16mo |
|
Temperature indicator cards: worth asking for?
Asking directly, because I could not find a straight answer: Temperature indicator cards: worth asking for? Two things I would like separated before anyone answers on temperature indicator cards, because they…
|
+2 | 6 | 116 | 3mo |
|
Why chargeback is not the safety net people assume
Asking directly, because I could not find a straight answer: Why chargeback is not the safety net people assume Asking about the record rather than the transfer. Every order leaves a trail: an order…
|
+22 | 26 | 2.5k | 2d |
|
Labelling requirements for research chemicals
Labelling requirements for research chemicals — setting out what I have, and where I think it stops being reliable. The question about labelling requirements for research chemicals that I actually want…
|
+5 | 9 | 45k | 4mo |
|
Packaging that arrived damaged: documenting it properly
Packaging that arrived damaged: documenting it properly Writing it up because I had to work it out twice and would rather nobody else did. A logistics question, since the answers here are usually better than…
|
+43 | 49 | 26k | 1d |
Maintenance
Maintainers: q.zhao_qa, batchlog. Next review due 6 April 2027.
To add a record, file a structured report in vendor reports with the compound, lot, service, method and result. Reports missing any of those are moved to the discussion rather than the record. Allegations without documentation are hidden under R6 and the hiding is logged.
On what each service's report establishes: Janoshik Analytical · Medutest · PeptideMeter · VendorInvestigate
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