Held locally in the Netherlands, so the thymosin alpha-1 5 mg arrived on day 4 without an import step.
Supplier source file · WWB
Wuhan Wansheng Biotechnology Co., Ltd.
Research-grade peptide, SARM, injectable and raw-material supplier based in Wuhan, Hubei, China. Janoshik-tested with 388 published third-party test reports.
4.9room score / 5
820member reports
609archive mentions
#6of 20 suppliers
What the room says
The most argued-about supplier in the archive. They publish a very large number of third-party reports, which the room respects, and the log also contains more batch-variance complaints than for anyone else at comparable volume. Both things are true and #vendor-verification has a pinned message saying exactly that.
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
- Publishes an unusually large body of third-party test reports
- Broad catalogue including injectables and raw materials
- Has never disputed a member's independent result
Consistently flagged
- Highest lot-to-lot spread in the room's purity tracking
- Support response times are slow and inconsistent
Company facts
| Legal name | Wuhan Wansheng Biotechnology Co., Ltd. |
|---|---|
| Trades as | WWB |
| Also called | WWB, Wansheng Bio, WWBT |
| Domain | wuhanwanshengbio.com → |
| City | Wuhan, Hubei, China |
| Established | not on record |
| 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.
2024-01-18u100_pat — did anybody find a difference between WWB and pharmacy at the same 1.7#semaglutide2024-08-06coa_or_cope — anyone compared GL Biochem and WWB on the same compound ask who actually makes it. about a third of suppliers answer honestly and that…#vendor-talk2024-10-27tarpit_tam — that is technically true and it applies to everyone equally, which is why the blinding does not care#vendor-verification2024-11-10lean_mass_lex — is WWB the manufacturer or a reseller#vendor-talk2025-04-05no_escrow_nate — anyone had fill consistency problems with WWB#vendor-talk2025-07-22knees_first — my sheet has 8 lots from WWB with a spread under a point, which is tight, still working it out#test-results2025-10-29ari_arrives — the packaging from WWB was the best i have had, double boxed with the tray intact#vendor-talk2025-12-02seoul_swirl — Shanghai Wibson are in the queue behind those two if my order ever ships. quoted 14 days, day 19 now#vendor-verification2026-02-04auckland_aliquot — i told WWB about a result they would not have liked and they did not argue. credit where it is due#test-results2026-02-21juniper_joins — understood, i only wanted the days and the fees#shipping-customs2026-03-04first_vial_finn — how much did the pair of tests cost you all in#test-results2026-03-08oli_orals — the certificate from WWB is the one i use to teach this because it actually has a populated impurity table#coa-reading2026-04-08cold_pack_carla — reship policies vary enormously. WWB honoured one for me without being pushed, which is not universal#shipping-customs2026-05-25ghk_gia — same-trace-two-lots-overlay.png#coa-reading2026-06-03night_pin — the vial is filled to 10mg of powder, and the powder is peptide plus salt plus water. label says 10mg, net peptide is 8.5ish. see…#test-results2026-06-30VialBot — Assay note: WWB lot SG-1177 reported at 99% of label content.#canada
Community rating
From 820 member reports logged since 2024. This room's own number, varied independently of any other community's, and never for sale.
Member reviews
chiara_n★★★★☆2026-04-30
matias_s★★★★★2026-02-18
Three compounds on one invoice, all three lot-matched to their own certificates, all three inside spec on independent testing.
britt_n★★★★★2025-08-07
They report purity by RP-HPLC with the wavelength stated and peptide content separately. Two different numbers, correctly separated.
meera_t★★★★★2026-03-14
Arrived on day 3 against a quoted 3. Customs paperwork was right first time, which is why it moved that fast.
soren_w★★★★★2025-11-22
The LL-37 5 mg arrived on day 4 with the cold pack intact and the seal unbroken. Straightforward, exactly as described.
zeynep_e★★★★★2026-01-08
Their raw material tested 98.3% against a reseller vial of nominally the same compound at 97.8%. Going direct is the whole argument.
mateusz_o★★★★★2026-03-27
First order, deliberately small, semaglutide 5 mg only. Documentation, transit and a VendorInvestigate result at 99.1% all checked out, so the next one will not be small.
bence_m★★★★☆2026-04-13
Steady supplier. Janoshik results have agreed with their stated figures on every lot I have submitted.
adnan_s★★★★★2025-09-27
Their warehouse in the United Kingdom carries the lines I reorder, so there is no wait on a factory run. Day 4 every time.
amira_c★★★★★2026-07-05
Certificate claimed 99.5% on lot WWB-26-133. PeptideMeter came back 99.6%. On an independent column that is as close to agreement as this gets.
yara_i★★★★★2025-08-22
Peptide content reported at 99.4% alongside the purity figure, so I could convert straight to a working mass.
elodie_n★★★★★2026-05-20
Their warehouse in the United States had the hexarelin 5 mg in stock and it shipped the same afternoon. Tracking never left the country.
divya_b★★★★★2026-02-07
Queried the related-substances total on lot WWB-24-339; they came back with method, column and detection limit. That depth is rare.
cormac_d★★★★★2025-07-25
Documentation is better than the two suppliers I used before, and the catalogue covers everything I actually order.
leila_f★★★★★2026-01-28
The certificate for lot WWB-24-300 carried method, wavelength, water content and an itemised related-substances table. Complete on the first pass.
liv_h★★★★★2025-02-10
Costed them per mg against three other suppliers on the same tirzepatide 10 mg spec. Competitive on price and clearly ahead on documentation.
anya_e★★★★★2026-02-28
Moved here after two bad lots elsewhere. 3 orders in and the PeptideMeter numbers have been flat every single time.
arne_c★★★★★2026-03-26
No customs paperwork, no import wait — it came from their stock in the Netherlands and arrived day 2.
idris_s★★★★★2025-01-16
One of the few places that will quote GHRP-2 5 mg at all, and the synthesis came back clean on an independent check.
lina_f★★★★★2025-03-25
Stock said available, stock was available, and it shipped the same day. That sequence is not as common as it should be.
priya_n★★★★★2026-03-27
7 orders in eighteen months, no substitutions, no reformulations, everything in stock when the site said it was. Boring is the highest compliment I have.
mateusz_m★★★★☆2026-04-05
Fair pricing for the documentation standard, and delivery landed on day 4 as quoted.
tarek_f★★★★★2025-12-02
Asked for the chromatogram instead of the summary figure and got the real trace, legible, integration visible. They send it without hesitating.
sena_m★★★★★2026-07-22
Ordered on a Monday from their warehouse in the United Kingdom and it was here by day 3. That is the whole case for regional stock.
arto_a★★★★★2026-01-15
Fifth order from them, all epithalon 10 mg. Sent one vial from each to PeptideMeter and the whole set landed inside half a point of each other. That flatness is exactly what I pay for.
elise_a★★★★★2025-11-03
Quoted 5 days, arrived in 4. Tracking updated at every hop from dispatch to door.
Where this supplier comes up
#vendor-talkSupplier experience. Price per mg, lead time, communication, fill consistency.169 mentions#test-resultsPost the report, the lot number, and where you bought it. One data point is one data point.75 mentions#vendor-verificationThe verification log. What counts as evidence and what does not.68 mentions#coa-readingPurity is not assay. A COA without a lot number is a picture.33 mentions#scam-watchLookalike domains, fake COAs, unsolicited sales contact. Report, do not engage.33 mentions#shipping-customsTransit times, declared value, seizure letters, cold packs that arrive warm.32 mentions#semaglutideSemaglutide. STEP and SELECT data, 0.25 to 2.4mg, and what happens above it.25 mentions#retatrutideRetatrutide. Triple agonist. Research use only. No long-term safety data.17 mentions#tirzepatideTirzepatide. Dual GIP/GLP-1, 2.5 to 15mg, SURMOUNT and SURPASS.13 mentions#other-peptidesEverything that is not a GLP-1. Evidence standards apply, and they are strict here.12 mentions
Other source files
Where WWB sells
Wuhan Wansheng Biotechnology 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 WWB at wuhanwanshengbio.com →
Whatever the storefront says, check the lot on the vial against the lot on the certificate before you use anything.
Fairness note
Criticism on this page is specific and evidenced. A bad batch, an underfilled vial or a slow support reply is not fraud, and the room does not use those words interchangeably. Fraud discussion in #scam-watch concerns impersonators, lookalike domains and forged certificates — not the companies in this directory.