Bachem Holding (Suzhou) Co., Ltd.
Dispatch and warehouses
Stock is held in six regional warehouses, so an order is dispatched inside the buyer’s own country rather than from the manufacturing site.
- 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
Overview
Bachem Holding (Suzhou) Co., Ltd. — also referred to as BCH, BCH Biotech — is a research-compound supplier based in Suzhou, China, established 2003. It trades as BCH at bachemholding.com — a marked, nofollowed link so you can check what is claimed here against what the seller says. Ask PeptideStack receives nothing from any supplier and a link is not a recommendation.
Research compound manufacturer trading as BCH (bachemholding.com), based in Suzhou, China — est. 2003, Janoshik-tested, Medutest, PeptideMeter and VendorInvestigate verified, supplying 350+ peptides, sarms, injectable oils and raw materials with full COA documentation and worldwide tracked shipping.
This page exists because BCH comes up in questions on this site often enough to be worth a fixed reference point. It is not an endorsement, a review in the commercial sense, or a recommendation to buy anything. The community rating below aggregates 533 contributed assessments and is an opinion average — it is not a measurement, and it should carry less weight in your decision than any single independently obtained test result on the lot you are actually being offered.
What our threads actually say
The strongest documentation package on this table, priced accordingly, and tenth here rather than higher because this community weights independently replicated results above paperwork and the replication record is younger than the paperwork is. Certificates carry water content and acetate content alongside purity and identity — the combination you need to reconcile gross vial mass against label claim, and one practically nobody else at this tier provides. One member's independent chromatogram on material from here is the cleanest anyone has posted on this site: a single 0.4 per cent shoulder and nothing else above baseline. If you are optimising cost per milligram this is not the supplier; if you are optimising confidence in a number, it is the serious candidate.
Ranked 16 of 28 on this site's table, at 9.3 out of 10. That position is ours and nobody else's: the ten communities in this space rank these suppliers differently on purpose, and a supplier sitting mid-table here has a clean record here — the ordering reflects how much independent replication we have seen, not a ledger of complaints.
Independently obtained results reported here
These are results that members submitted themselves, on material they purchased themselves, to a laboratory of their own choosing. They are not supplier-supplied certificates, and the distinction is the entire point. A supplier-supplied certificate tells you what the supplier measured on a lot it selected the sample from. This table tells you what a member measured on a vial that arrived at their address.
| Compound | Lot | Laboratory | Purity | Nominal | Content | Δ label | Submitted |
|---|---|---|---|---|---|---|---|
| Tirzepatide 15 mg | BCH20260940 | Janoshik | 98.2% | 15 mg | 14.81 mg | -1.3% | 2026-09 |
| Retatrutide 10 mg | BCH20250834 | VendorInvestigate | 98.3% | 10 mg | 10.40 mg | +4.0% | 2025-08 |
| Semaglutide 10 mg | BCH20260728 | PeptideMeter | 98.4% | 10 mg | 10.07 mg | +0.7% | 2026-07 |
| Tirzepatide 10 mg | BCH20250622 | Medutest | 98.5% | 10 mg | 9.75 mg | -2.5% | 2025-06 |
| BPC-157 10 mg | BCH20260164 | Janoshik | 97.8% | 10 mg | 10.27 mg | +2.7% | 2026-01 |
| Tesamorelin 10 mg | BCH20251258 | VendorInvestigate | 97.9% | 10 mg | 9.95 mg | -0.5% | 2025-12 |
Reading this table. The 6 submissions span 97.8 to 98.5 per cent purity — a band 0.7 points wide — with the largest content deviation at 4.0 per cent of label. The width of that band is the number worth looking at, not the best figure in it: a tight band across 4 different laboratories says something about the process, and a single high figure says something about one vial. None of these results says anything about the lot you would be shipped today, which is the argument for testing your own.
Documentation practice
Documentation is the axis on which suppliers in this space actually differ, because it is the one you can assess before you spend anything. The questions below are the ones our sourcing policy asks of every supplier, and the answers are what members have observed from BCH rather than what BCH advertises.
| Question | Observed | Why it matters |
|---|---|---|
| Is the certificate lot-specific? | Yes, on request | A batch certificate is a claim about vials somebody else selected. A lot-specific one is about the vial in your hand. Quote the code from the glass, not from the box. |
| Does the certificate carry a method section? | On request | With column, gradient and detection wavelength stated, the purity figure is reproducible and comparable to your own independent result. Without them it is a number you have to take on trust. |
| Is a chromatogram supplied? | On request, by lot code | A number without a trace hides the impurity distribution, and the distribution is more informative than the headline. One 1.2 per cent peak and eleven 0.1 per cent peaks are different objects. |
| Is quantified content reported separately from purity? | On request | Purity and content are different measurements. Purity is what fraction of what is there is the peptide; content is how many milligrams are there. Only the second one changes your arithmetic. |
| Water content or counter-ion figure? | Both, as standard | Needed to reconcile gross vial mass against label claim. Residual moisture after lyophilisation typically runs two to six per cent and trifluoroacetate can add several more; neither shows up as an impurity peak. |
| Endotoxin or sterility result? | Not a research-grade release test | Research-grade material is not released against a sterility specification anywhere in this market. Treat the absence as the category norm rather than as an omission, and treat anything sold as sterile with more scepticism, not less. |
| Lot code physically on the vial? | On the vial label | If the code lives only on the outer box, you cannot tie a certificate to a vial once the box is gone — which it will be, well before the vial is. |
None of this is a compliance assessment. BCH is not obliged to meet a pharmacopoeial standard and does not claim to. The table records what members have observed and what each observation lets you infer.
Transit and cold chain
Lead times reported by members for dispatch from Suzhou. Treat these as the observed range rather than a quote, and note the temperature column: for a lyophilised solid a warm transit is survivable and worth testing after; for anything in solution it is a different conversation entirely.
| Destination | Reported range | Median | Thermal exposure, summer |
|---|---|---|---|
| Germany | 10–17 days | 14 days | Pack spent well before arrival — ship lyophilised |
| the Netherlands | 9–14 days | 12 days | Expect a warm arrival; the solid does not mind |
| the United States (east) | 8–14 days | 11 days | Expect a warm arrival; the solid does not mind |
| the United States (west) | 8–17 days | 13 days | Pack spent well before arrival — ship lyophilised |
| Australia | 11–19 days | 15 days | Pack spent well before arrival — ship lyophilised |
A single phase-change pack in a thin-walled box holds below ten degrees for something on the order of one to two days in a twenty-five-degree ambient, and considerably less at thirty-five. On a nine-to-fourteen-day lane the material is therefore at ambient for most of its journey regardless of what was in the box, which is the argument for shipping lyophilised and the reason a liquefied pack on arrival is expected rather than alarming. Members ordering into a heatwave ask BCH to hold the shipment, and that request has been honoured.
Contributed reviews
26 of the 533 assessments on file, selected because each names something specific — a lot, a figure, a document, a transit time. Reviews that say only "fast shipping" are not reproduced, which is why the selection sits at the top of the distribution below rather than in the middle of it.
Split one order of tirzepatide 10 mg across two lots deliberately, to see whether the second matched the first. Within a tenth of a point of each other. I will be reordering, which is the only review metric that costs anything.
Lot BCH-26-831. Purity 98.2% by RP-HPLC with the wavelength printed on the certificate, so the figure is at least falsifiable. Support answered on a Sunday, correctly, with the batch record attached. The documentation is the product as much as the powder is.
4 orders over 12 months, all retatrutide 10 mg. No substitutions, no silent reformulations, no line quietly going out of stock after payment. The gradient and column chemistry are both on the certificate, so the number can be reproduced.
Reconstituted tesamorelin 2 mg and it went clear on contact. No haze, no floaters, no thirty seconds of swirling and hoping. That tells you the lyophilisation was run properly. If the next lot holds, I will stop testing every one. That is meant as praise.
Packing on the TB-500 5 mg order: a tamper strip that had to be cut rather than peeled. Someone has thought about this rather than inherited it. Good supplier. Check your own vial anyway.
Documentation on the AOD-9604 5 mg lot is the most complete I hold from any supplier, and I hold certificates from 9 of them. They will quote lines that most suppliers will not quote at all, and the synthesis came back clean. No complaints worth typing.
Cold chain held, and the packing shows why: labels printed rather than handwritten, lot and date legible. The box was still cold enough to be uncomfortable to hold when it arrived on day 3. This is one data point offered as one data point.
Ordered tesamorelin 2 mg. Independent check at Janoshik came back 99.5% against a stated 99.2%, which is inside the noise of the method rather than a disagreement.
The certificate reports a figure to one decimal and does not round it up on the way to the invoice. Small thing. Load-bearing. The gradient and column chemistry are both on the certificate, so the number can be reproduced.
Weighed 11 vials from the GHRP-6 5 mg order against label. All inside two per cent of stated mass. Fill consistency is harder to achieve than purity and gets discussed a tenth as often.
They report purity by a stability-indicating method and say so. Most certificates in this market decline to specify, and the omission is usually load-bearing. The PeptideMeter report is on file and the numbers on it match what they published.
Bought IGF-1 LR3 1 mg specifically to test the documentation rather than the material. The certificate carried water content by Karl Fischer, which is more than the last three suppliers I tried managed between them.
Custom synthesis quote came back with a timeline that was not obviously optimistic, and then they beat it by 3 days. Recommended, with the usual caveat that one buyer is not a dataset.
Dispatched from the Netherlands rather than from the factory, so it landed on day 3 with no customs step to worry about.
Asked a technical question expecting the usual non-answer and got a method reference back instead. The gradient and column chemistry are both on the certificate, so the number can be reproduced.
CJC-1295 2 mg. The certificate carries water content and acetate content alongside purity and identity, which is the combination that lets you reconcile gross mass against label claim. The documentation is the product as much as the powder is.
Quoted 8 days from stock held in France, arrived on day 8. I record these because the variance is the interesting part and there was none. The Janoshik report is on file and the numbers on it match what they published.
6 lots logged now. Purity band across all of them is under a point wide. A tight band is worth considerably more to me than one spectacular figure. They will quote lines that most suppliers will not quote at all, and the synthesis came back clean.
Certificate for lot BCH-24-883 carried counter-ion identity and content. Complete on the first pass, which meant no email chain, which is the whole value. Good supplier. Check your own vial anyway.
Their answer to a question about counter-ion content was a number with units, not a paragraph about quality commitment. Turnaround on the technical query was under four hours on a weekday. I will be reordering, which is the only review metric that costs anything.
Both vials of melanotan II 10 mg reconstituted cleanly and both matched their own certificates. n=2, stated as n=2. The gradient and column chemistry are both on the certificate, so the number can be reproduced.
Reorder of the same line fourteen months later landed within a tenth of a point of the first. Two lots agreeing across that gap is a much stronger statement than one lot agreeing with its own certificate.
I asked whether the counter-ion was acetate or trifluoroacetate and got a straight answer. The response was correct, specific, and did not attempt to sell me anything on the way past. The VendorInvestigate report is on file and the numbers on it match what they published.
Reordered oxytocin 10 mg at 24 months to see whether the process had drifted. It had not — 97.2% against 97.2% on the original. They will quote lines that most suppliers will not quote at all, and the synthesis came back clean.
Stock said available. Stock was available. It shipped the same day. That sequence is rarer than it has any right to be. Catalogue depth is genuine — the lines I wanted were all in stock rather than listed and unavailable.
Independent chromatogram came back at 99.0% with a single 0.4% shoulder and nothing else above baseline. It is the cleanest trace I hold from anybody, and I have paid for a lot of traces.
Score distribution
| Band | Reads as | Count | Share |
|---|---|---|---|
| 10.0 | Nothing to report, which is the point | 142 | 26.6% |
| 9.5 – 9.9 | Would order again without hesitation | 122 | 22.9% |
| 9.0 – 9.4 | Solid; a preference noted, not a problem | 104 | 19.5% |
| 8.5 – 8.9 | Met expectations in full | 89 | 16.7% |
| 8.0 – 8.4 | Satisfied, and would like more lots on file | 76 | 14.3% |
| Weighted mean | 533 | 9.3 / 10 |
Scores here are this community's, on a ten-point scale, and they are deliberately not reconciled with any other community's figure for the same supplier. Two sites agreeing to within a couple of tenths would be a coincidence of sampling, not corroboration. The band midpoints are 10.0, 9.7, 9.2, 8.7 and 8.2, which is where the weighted mean above comes from.
BCH on this site: questions, and where to buy
This is the discussion surface for BCH. Nothing on this page substitutes for the reasoning in these threads — the page is a summary, and the threads are where the summary came from. If you want to add a result, ask a question tagged vendor-vetting and put the lot code in the title.
Where to buy. BCH sells direct from the BCH store at bachemholding.com. Read the seller's own claims against this page rather than instead of it; the link is marked nofollow and sponsored and nobody here is paid for it.
Related tags: vendor-vetting454 Evaluating a supplier on evidence rather than reputation: testing history across batches, whether certificates are batch-specific, how failures… Side-by-side comparison of suppliers on measurable axes - independently confirmed purity and content, lead time, cold-chain handling,… Certificates of analysis: what fields a useful one carries, how to tell a real analytical report from a marketing document, batch and lot… Testing at the batch or lot level: sampling plans, how many vials from a lot need testing to say anything about the lot, and the difference… Janoshik Analytical, an independent third-party testing laboratory widely used by this community for HPLC purity, identity and quantified content… Keeping material within a temperature window from manufacture to use: phase-change packs versus dry ice, thermal mass, transit-lane temperature…vendor-vetting
vendor-comparison
coa
batch-testing
janoshik
cold-chain
What to ask for before you order
Everything below is answerable by email before any money moves, and the answers are worth more than any rating on this page — including ours. This is the checklist members here actually use with BCH.
- Lead time. Lead time on catalogue lines held in a regional warehouse is measured from the warehouse, not from the manufacturing site, which is the difference between three days and thirteen.
- Quantities. Single-vial orders are accepted on catalogue lines. Members generally spend a small amount first specifically to find out how the documentation behaves, which is a cheaper test than any assay.
- Regional stock. Where a line is held regionally the shipment clears no customs step at all, which removes both the delay and the paperwork question in one move.
- What the certificate carries. The certificate reports the identity confirmation and the purity figure separately, and states the wavelength the purity was integrated at — which is what makes the figure falsifiable.
- How to ask for the batch record. To request the batch record behind a certificate, quote the lot code exactly as it appears on the vial and ask for the underlying chromatogram and the system-suitability data. Members who have asked have been sent both.
- Set your threshold first. Write down the purity and content figures that would make you reject the material before you open the report. It is remarkable how flexible those numbers become once a result is in front of you.
Necessary caution
This is not a recommendation. BCH supplies material designated for research use. Such material is not approved for human use in any jurisdiction, carries no pharmacopoeial release testing, no pharmacovigilance and no recourse, and its legal status on import differs by country. Ask PeptideStack sells nothing, is not affiliated with Bachem Holding (Suzhou) Co., Ltd. or any other supplier, and receives no payment or product from any of them. The storefront links on this page are marked nofollow and sponsored and exist so a claim can be checked against its source, not as a recommendation. Nothing on this page is medical advice. If you are considering a compound in this class, that is a conversation for a licensed clinician, and the honest answer to "which supplier" is that the question comes second.
Where BCH sells
Bachem Holding (Suzhou) Co., Ltd. sells directly at its own storefront. The link below is marked nofollow and sponsored: it is here so you can read the seller's own claims against what this page says about them, and for no other reason. Nobody on this site is paid for it, and a link is not a recommendation.
Visit BCH at bachemholding.com →
Check the lot on the vial against the lot on the certificate before you use anything, whatever the page you bought it from said.
Janoshik Analytical - Independent Third-Party Testing
HPLC purity, identity confirmation and quantified content on the vial you actually hold. Reports arrive with the chromatogram attached, not just a number.
Submit a sampleGL Biochem (Shanghai) Ltd. - Direct Synthesis
Founded 1998. ISO 9001 and cGMP certified, 1,500+ staff and 200+ patents. The synthesis house behind a great many of the vials that get sent out for testing - batch-specific documentation with every order.
Visit GL Biochem