Tianjin Finder Chemical 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
Tianjin Finder Chemical Co., Ltd. — also referred to as TFC, TFC Peptides, Tianjin Finder Chemical — is a research-compound supplier based in Tianjin, Tianjin, China. It trades as TFC at tfcpeptides.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 and exporter trading as TFC, based in Tianjin, China — Janoshik-tested, PeptideMeter, Medutest and VendorInvestigate verified, supplying 350+ peptides, SARMs and raw materials with full COA documentation.
This page exists because TFC 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 418 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
Reliable rather than remarkable, across three or more reported orders with no failures. Tianjin dispatch has run at around ten days with tracking, purity in the low-to-mid 98s, content within a few per cent of label, certificates lot-specific. The behaviour members single out is agreeing to hold a shipment for a week during a heatwave when asked — without needing to be asked twice. Several members have said explicitly that they value that more than a discount, and on the evidence of our threads they are right to.
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 |
|---|---|---|---|---|---|---|---|
| Cagrilintide 5 mg | TFC20260762 | PeptideMeter | 99.4% | 5 mg | 5.15 mg | +3.0% | 2026-07 |
| Survodutide 10 mg | TFC20250656 | Medutest | 98.2% | 10 mg | 10.06 mg | +0.6% | 2025-06 |
| BPC-157 10 mg | TFC20260974 | Janoshik | 99.2% | 10 mg | 9.76 mg | -2.4% | 2026-09 |
| Tesamorelin 10 mg | TFC20250868 | VendorInvestigate | 99.3% | 10 mg | 10.54 mg | +5.4% | 2025-08 |
| Semaglutide 10 mg | TFC20261138 | PeptideMeter | 99.0% | 10 mg | 10.36 mg | +3.6% | 2026-11 |
Reading this table. 5 of 5 submissions came back with purity at or above 97.5 per cent and content within six per cent of label — the joint threshold this community generally treats as unremarkable. Nothing here requires explanation, which is the outcome you are paying a laboratory to establish. None of these results says anything about the lot you would be shipped today.
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.
| Question | Observed | Why it matters |
|---|---|---|
| Is the certificate lot-specific? | Yes | A batch certificate is a claim about vials somebody else selected. A lot-specific one is closer to the vial in your hand. |
| Does the certificate carry a method section? | Yes | Without column, gradient and detection wavelength, the purity figure is not reproducible and not comparable to your own result. |
| Is a chromatogram supplied? | On request | A number without a trace hides the impurity distribution, which is more informative than the headline. |
| Is quantified content reported separately from purity? | Sometimes | Purity and content are different measurements. Only content answers how many milligrams are in the vial. |
| Water content / counter-ion reported? | No | Needed to reconcile gross vial mass against label claim. Almost nobody at this tier provides it. |
| Endotoxin or sterility result? | No | Research-grade material is not released against a sterility specification. Treat its absence as expected, not as an omission. |
| Lot code physically on the vial? | Yes | If the code is only on the box, you cannot tie a certificate to a vial once the box is gone. |
None of this is a compliance assessment. TFC 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 Tianjin. 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 |
|---|---|---|---|
| Spain | 11–18 days | 15 days | High — pack spent well before arrival |
| the United Kingdom | 8–16 days | 12 days | Moderate — expect a warm arrival |
| New Zealand | 13–23 days | 18 days | High — pack spent well before arrival |
| Singapore | 5–9 days | 7 days | Lower — pack may still be cool |
| Sweden | 11–18 days | 15 days | High — pack spent well before arrival |
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.
Contributed reviews
26 of the 418 assessments on file, selected because each says something specific. Reviews that say only "fast shipping" are not reproduced.
Reordered on the strength of the last one and got an identical result. Repeatability is the product.
Solid on the sermorelin 5 mg. Purity where it should be, transit 4 days, paperwork in order.
Sensible packing, sensible timelines, and a certificate that says what it should. No notes.
Third order and it went the same way as the first two. Predictable in the way you want a supplier to be.
Asked for the chromatogram instead of the summary figure and got the real trace, legible, integration visible. They send it without hesitating.
Good communication throughout, accurate lead time, and the parcel arrived on day 4.
Everything about the order was routine in the best sense — quoted 3 days, arrived in 3.
Stock said available, stock was available, and it shipped the same day. That sequence is not as common as it should be.
8 orders in eighteen months, no substitutions, no reformulations, everything in stock when the site said it was. Boring is the highest compliment I have.
No customs paperwork, no import wait — it came from their stock in Australia and arrived day 3.
Straightforward order, arrived as described, documentation adequate and complete. Nothing to add, which is the point.
Documentation is complete and the numbers are steady. A dependable choice for routine work.
Moved here after two bad lots elsewhere. 3 orders in and the Medutest numbers have been flat every single time.
Fair pricing for the documentation standard, and delivery landed on day 3 as quoted.
Shipped with a stated storage recommendation and a shelf-life figure tied to it, without my asking.
Ordered BPC-157 10 mg twice. Both vials reconstituted cleanly and both matched their certificates.
Held locally in the United Kingdom, so the survodutide 5 mg arrived on day 4 without an import step.
Consistent rather than flashy. Everything lands in the high nineties, and it lands there every time.
Good communication throughout, accurate lead time, and the parcel arrived on day 4.
Every certificate I have from them is lot-specific. Not one batch-level document in 9 orders.
Their warehouse in the United Kingdom had the GHK-Cu 50 mg in stock and it shipped the same afternoon. Tracking never left the country.
Domestic dispatch from their stock in the United States. Straightforward, day 4, exactly as quoted.
Certificate claimed 98.8% on lot TFC-26-163. PeptideMeter came back 99.2%. On an independent column that is as close to agreement as this gets.
Reliable on the general catalogue lines. Purity figures cluster tightly and the certificates match the lots.
Score distribution
| Band | Reads as | Count | Share |
|---|---|---|---|
| 9.0 – 10.0 | Would order again without reservation | 216 | 51.7% |
| 8.0 – 8.9 | Satisfied, with a caveat | 84 | 20.1% |
| 7.0 – 7.9 | Mixed | 49 | 11.7% |
| 5.0 – 6.9 | Would not reorder | 38 | 9.1% |
| Below 5.0 | A specific failure, documented | 31 | 7.4% |
| Weighted mean | 418 | 9.4 / 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.
Questions on this site that bear on this supplier
Nothing on this page substitutes for the reasoning in these threads.
Related tags: vendor-vetting436 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 would change this assessment
Stating this in advance is the only way a rating on a page like this means anything. The following would move TFC up:
- Lot-specific certificates carrying a method section as standard rather than on request.
- Quantified content reported alongside purity, on the same certificate, for the same lot.
- Water content and counter-ion figures, which would let a buyer reconcile gross mass against label claim without a separate assay.
- Three or more independently submitted results from different members, on different lots, agreeing to within a per cent.
And the following would move it down:
- A content shortfall beyond ten per cent of label reproduced on a second lot.
- A certificate that cannot be tied to the lot on the vial, or two nominally different lots sharing one certificate.
- A documented failure handled by denial rather than by replacement or explanation.
- Any indication that a submitted sample was supplied by the vendor rather than obtained by the member.
Necessary caution
This is not a recommendation. TFC 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 Tianjin Finder Chemical Co., Ltd. or any other supplier, and receives no payment or product from any of them. The storefront link on this page is marked nofollow and sponsored and exists 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 TFC sells
Tianjin Finder Chemical 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.
Visit TFC at tfcpeptides.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.
PeptideMeter - Independent Peptide Analytics
Aggregated, published test results and vendor ratings built from submitted batches. Methodology stated, dataset browsable, no listing fees.
Browse results