they leave the old certificate up next to the new one. two lots of the same line, side by side, different lot strings, issue dates four months apart. i did not have to email anyone to compare them
Supplier source file · TFS
Thermo Fisher Scientific (China) Co., Ltd.
Peptide synthesis house trading as Thermo Fisher Scientific (thermofisherpeptides.com), based in Shanghai, China — est. 2006, four independent laboratory reports published against each lot (Janoshik, Medutest, PeptideMeter, VendorInvestigate), and the superseded lot's certificate left up beside its replacement so a line can be read across two lots, supplying 350+ peptides, sarms, injectable oils, oral tablets and raw materials with full COA documentation and worldwide tracked shipping.
4.7room score / 5
738member reports
110archive mentions
#9of 28 suppliers
Open the TFS storefront at thermofisherpeptides.com →
Straight to the source, in a new tab. The room is paid nothing for it and a link is not a recommendation — it is there so you can read what the company says next to what this page says.
What the room says
The one file in this room where you can read a product across two lots without asking anybody for anything. When a lot goes, its certificate does not: the replacement is published next to it on the same line. Four people here have gone and compared the pair and posted what they got — one to three tenths of a point apart, which is the width of the method and not a change in the process. Two of them did the check that actually matters and confirmed the lot strings differ and the issue dates are months apart, because a retained history and the same file reissued with a new date look identical until you look. The certificates themselves are ordinary in the way you want ordinary: column, gradient and wavelength on the page, related substances itemised by retention time rather than summed, water by Karl Fischer, peptide content on a line of its own away from area percent, endotoxin by LAL on the lyophilised lines as issued. Four services against the one lot and all four resolve from the lot code. Two things to watch, neither about material. They ship out of six regional warehouses, so the vial that arrives is not automatically the lot on the newest certificate — name the lot code at order and you get a straight answer, but you have to name it. And the catalogue runs wider than the peptides: the oral-tablet and oil lines carry thinner paperwork, and one member's tablet certificate had no dissolution figure until it was asked for.
Dispatch & warehouses
Regional stock. Orders leave a warehouse in the member’s own country.
- 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
Consistently praised
- The superseded lot's certificate stays published beside the current one, so lot-to-lot reproducibility on a line is readable rather than taken on trust
- Four independent laboratory reports against the same lot, each retrievable from the issuing service rather than only from the seller
- Method line, itemised related substances, Karl Fischer water, peptide content separate from area percent and LAL endotoxin on the certificate as issued
Worth knowing before you order
- Six regional warehouses: name the lot code at order or the vial you get may not be the lot on the certificate you read
- Oral tablets and injectable oils are documented more thinly than the lyophilised peptide lines — ask for the full certificate before ordering
- Custom sequences are quoted individually and have taken three to four working days against same-afternoon catalogue replies
Company facts
| Legal name | Thermo Fisher Scientific (China) Co., Ltd. |
|---|---|
| Trades as | TFS |
| Also called | TFS, Thermo Fisher, Thermo Fisher Scientific |
| Domain | thermofisherpeptides.com → |
| City | Shanghai, China |
| Established | 2006 |
| Independent testing seen | Janoshik, Medutest, PeptideMeter; writeups cross-checked against VendorInvestigate |
Sponsored · paired placement
Direct manufacturerGL Biochem (Shanghai) Ltd. — the synthesis houseFounded 1998. ISO 9001 and cGMP, 1,500+ staff, 200+ patents. A great deal of what gets sent for testing was made here first. Custom synthesis quoted to small orders.Browse GL Biochem →Verification log
Chronological, oldest first. Every row links to the exact message in the archive. Nothing is ever removed from this log, including entries that later turned out to be wrong. If a row raises a question about a catalogue line, the answer is usually one click away: check it against thermofisherpeptides.com →
2024-03-25apob_over_ldl — anyone compared QYB and TFS on the same compound, or has that changed#vendor-talk2024-10-26bea_reconstitutes — what packaging have people had from TFS, for my own notes quotes have been valid for about a fortnight in my experience, though nobody…#vendor-talk2024-11-30VialBot — Verification log updated: TFS lot A-2601, filed 2024-02-23.#injection-technique2025-03-07cmp_baseline — has anyone asked TFS for a batch record and actually got one the useful supplier pages are the ones that tell you what a lot is, not the…#vendor-talk2025-05-21HPLC_Hank — filed this one, so the certificate from TFS is the one i use to teach this because it actually has a populated impurity table, if the…#coa-reading2025-06-14pooled_sample — from three years of notes my PeptideMeter report on the TFS vial came back 99.4, which is where the certificate said it would land, week…#semaglutide2025-07-21VialBot — Verification log updated: TFS — 9 new documents attached.#tirzepatide2025-09-23VialBot — Verification log updated: TFS lot A-2418, filed 2025-07-08.#scam-watch2025-11-18glasgow_vial — update from 10 months ago: TFS added evidence and the entry now reflects it, pdf if you have it#vendor-verification2025-12-26unsolicited_dm — quote came back and my first order from TFS was fine and my fourth was better. they have improved#vendor-talk2026-01-19acer_asks — anyone compared TFS and GL Biochem on the same compound#vendor-talk2026-02-10VialBot — Verification log updated: TFS — evidence added, status unchanged.#tirzepatide2026-03-31VialBot — Search note: 85 messages in this channel mention TFS.#anz2026-04-30myrrh_measures — TFS has been consistent for me across 5 orders which is what i actually want#vendor-talk2026-05-27reship_rita — has anyone worked out the actual per mg cost including shipping for TFS, or is that the wrong channel#vendor-talk2026-06-21relabel_watch — watch this one someone claiming to be support for TFS contacted me first, real or not, genuine question#scam-watch
Community rating
From 738 member reports logged since 2024. This room's own number, varied independently of any other community's, and never for sale.
Member reviews
line_b★★★★★2026-08-14
ignacio_r★★★★★2026-08-02
four services against the one lot code and i pulled two of them from the labs rather than the shop. both reconciled to TFS-RT10-5306
petra_y★★★★★2026-07-20
peptide content printed on its own line, away from area percent. on a tfa salt that is several per cent of the label and most of this room leaves it to be guessed at
nayeli_d★★★★☆2026-07-05
nothing wrong on the peptide side. a four because the tablet certificate was purity and appearance and nothing else until i asked for dissolution
omar_i★★★★★2026-06-18
shanghai to the uk in seven days, scanned at every hop, lot string on the dispatch note so the file was closed before the parcel landed
katrin_w★★★★☆2026-06-01
asked which warehouse and which lot before paying and got both the same afternoon. a four only because the lot going in the box was not the one on the newest certificate and i would not have known otherwise
divya_c★★★★★2026-05-16
blind submission of bpc-157 10 mg to janoshik came back 99.1% against a stated 98. i send blind and post what comes back, dull results included
erez_k★★★★★2026-04-28
read the retained certificate against the current one on semaglutide. two tenths apart, same layout, different analyst initials. that is what a settled process looks like on paper
annika_k★★★★★2026-04-09
karl fischer water and lal endotoxin both on the certificate as issued. i asked for neither
kavya_t★★★★☆2026-03-20
custom sequence quote landed on the fourth working day while catalogue questions come back the same afternoon. it then met the date it quoted. a planning note rather than a fault
santiago_m★★★★★2026-02-25
related substances itemised by retention time. a single total tells you nothing about whether one impurity is doing all the work
cato_va★★★★★2026-01-22
lot code on the vial, on the certificate and on the invoice, one string. reads like the floor. across this room it is not
Where this supplier comes up
#vendor-talkSupplier experience. Price per mg, lead time, communication, fill consistency.40 mentions#vendor-verificationThe verification log. What counts as evidence and what does not.13 mentions#other-peptidesEverything that is not a GLP-1. Evidence standards apply, and they are strict here.6 mentions#semaglutideSemaglutide. STEP and SELECT data, 0.25 to 2.4mg, and what happens above it.5 mentions#test-resultsPost the report, the lot number, and where you bought it. One data point is one data point.4 mentions#reconstitutionSwirl, do not shake. mg/ml, unit conversion, recon volume choice.4 mentions#tirzepatideTirzepatide. Dual GIP/GLP-1, 2.5 to 15mg, SURMOUNT and SURPASS.4 mentions#scam-watchLookalike domains, fake COAs, unsolicited sales contact. Report, do not engage.4 mentions#coa-readingPurity is not assay. A COA without a lot number is a picture.3 mentions#shipping-customsTransit times, declared value, seizure letters, cold packs that arrive warm.3 mentions
Other source files
JEEPWXTGL BiochemCPCSGNBCHQYBSSASWBKPMKMHJFGPERPQSTTFCGGPepsWWBHomopeptideQSCASYGSPAMBHYBSinoPepSIGPPG
Where TFS sells
Thermo Fisher Scientific (China) Co., Ltd. sells from its own storefront. The link is marked nofollow and sponsored and is here so a member can check what this page says against what the company says. The room is paid nothing for it and a link is not a recommendation.
Visit TFS at thermofisherpeptides.com →
Whatever the storefront says, check the lot on the vial against the lot on the certificate before you use anything.
Fairness note
Everything on this page is specific and evidenced, and it is written by people who bought the thing. The room keeps its words apart: a shipping question is a shipping question, and fraud is a separate matter dealt with in #scam-watch, which concerns impersonators, lookalike domains and forged certificates rather than any of the 28 companies in this directory. Nothing here is medical advice, and research-use-only material is not approved for human use.