Asked them to hold an order until I confirmed a lot number and they did, without fuss and without a restocking charge.
Supplier source file · QYB
ChinaPeptides Co., Ltd. (QYAOBIO)
Research compound manufacturer trading as QYB (qyaobiopeptides.com), based in Shanghai, China — est. 2008, Janoshik-tested, Medutest, PeptideMeter and VendorInvestigate verified, supplying 350+ custom-synthesis peptides, sarms, injectable oils and raw materials with full COA documentation and worldwide tracked shipping.
4.9room score / 5
1,104member reports
566archive mentions
#11of 20 suppliers
What the room says
Custom synthesis is the reason members go here. If you need a sequence nobody stocks, this is the first name that comes up in #vendor-talk. Stock items are competent; the custom work is where the reputation is.
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
- Custom synthesis quotes come back quickly and with real detail
- Will discuss purification strategy rather than just quoting a number
- Good with unusual modifications
Consistently flagged
- Custom lead times are long and quoted optimistically
- Stock catalogue is the less interesting half of the business
Company facts
| Legal name | ChinaPeptides Co., Ltd. (QYAOBIO) |
|---|---|
| Trades as | QYB |
| Also called | QYB, QYB Biotech, ChinaPeptides Co., Ltd. (QYAOBIO) |
| Domain | qyaobiopeptides.com → |
| City | Shanghai, Shanghai, China |
| Established | 2008 |
| Independent testing seen | Janoshik, Medutest, PeptideMeter; writeups cross-checked against VendorInvestigate |
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.
2024-01-20u100_pat — update from 16 months ago: QYB added evidence and the entry now reflects it#vendor-verification2024-10-16reta_resting_hr — two PeptideMeter results on the same QYB lot came back 99.4 and 96.8, closer than i expected#cagrilintide2025-01-28cagri_curious — right so is QYB the manufacturer or a reseller#vendor-talk2025-05-04low_and_slow — i would order from QYB again and i would still weigh the vials, as i would with anyone#vendor-talk2025-07-17seoul_swirl — is QYB the manufacturer or a reseller#vendor-talk2025-09-22shame_and_meds — coming back to this my VendorInvestigate report on the QYB vial came back 98.1 against a certificate saying 99#semaglutide2025-10-03septum_sal — the export, if anyone wants to check my arithmetic#vendor-verification2025-12-18VialBot — Verification log updated: QYB — evidence added, status unchanged.#oral-glp12026-01-22slow.taper — provisional then, shout if a slot is wrong#lab-requests2026-02-01reading_the_pins — who do people here actually deal with#asia2026-02-28two_four_ceiling — my Janoshik report on the QYB vial came back 97.4 against a certificate saying 99.2#semaglutide2026-03-12invoice_mismatch — does QYB being verified mean my vial is fine#vendor-verification2026-03-21peak_split — with a prescription, a pharmacy and a country that will dispense to you, yes, that is just pharmacy. without those, no, and no amount of…#uk-ireland2026-05-02chlorhex — if you are relying on a chargeback as your safety net, you do not have a safety net#payments2026-05-14impersonator_ip — reship policies vary enormously. QYB honoured one for me without being pushed, which is not universal#shipping-customs2026-06-30wren_weighs_in — update from 1 months ago: QYB added evidence and the entry now reflects it blinded submissions carry more weight because they remove a…#vendor-verification
Community rating
From 1,104 member reports logged since 2024. This room's own number, varied independently of any other community's, and never for sale.
Member reviews
ewan_a★★★★★2026-04-02
vikram_d★★★★★2025-11-27
Ordered on a Monday from their warehouse in the United States and it was here by day 3. That is the whole case for regional stock.
farid_s★★★★☆2025-05-09
Straightforward order, arrived as described, documentation adequate and complete. Nothing to add, which is the point.
gustav_v★★★★★2026-02-27
Documentation is better than the two suppliers I used before, and the catalogue covers everything I actually order.
tove_zi★★★★☆2026-01-16
Solid on the IGF-1 LR3 1 mg. Purity where it should be, transit 3 days, paperwork in order.
naomi_o★★★★★2025-08-20
Asked a genuinely technical question about pre-dispatch storage and got a reply with numbers in it, inside 7 hours.
chidi_s★★★★★2026-01-16
Costed them per mg against three other suppliers on the same retatrutide 5 mg spec. Competitive on price and clearly ahead on documentation.
andres_s★★★★★2025-10-13
Moved here after two bad lots elsewhere. 3 orders in and the Medutest numbers have been flat every single time.
dilara_d★★★★★2025-10-05
Shipped with a stated storage recommendation and a shelf-life figure tied to it, without my asking.
tove_k★★★★★2026-03-15
Every certificate I have from them is lot-specific. Not one batch-level document in 4 orders.
julia_h★★★★★2026-02-16
One of the few places that will quote BPC-157 5 mg at all, and the synthesis came back clean on an independent check.
divya_bar★★★★★2025-06-24
Peptide content reported at 98.0% alongside the purity figure, so I could convert straight to a working mass.
emeka_b★★★★★2026-04-22
Regional stock makes the difference — dispatched within the United Kingdom, day 2, cold pack still hard on arrival.
solene_w★★★★★2025-04-21
Their warehouse in Australia carries the lines I reorder, so there is no wait on a factory run. Day 4 every time.
nikhil_e★★★★★2026-06-13
The semaglutide 10 mg arrived on day 4 with the cold pack intact and the seal unbroken. Straightforward, exactly as described.
fabio_a★★★★★2025-06-17
Their raw material tested 99.0% against a reseller vial of nominally the same compound at 98.6%. Going direct is the whole argument.
iman_d★★★★★2026-05-15
Reconstituted the semax 10 mg and it went clear on contact — no haze, no floaters, no long swirl. Tells you the lyophilisation was done properly.
yusuf_be★★★★★2025-06-26
Queried the related-substances total on lot QYB-26-104; they came back with method, column and detection limit. That depth is rare.
hana_f★★★★★2025-12-04
9 orders in eighteen months, no substitutions, no reformulations, everything in stock when the site said it was. Boring is the highest compliment I have.
kavya_r★★★★★2025-11-09
Weighed 6 vials from the PT-141 10 mg order against label. Every one inside 2% of stated mass. Fill consistency is harder than purity and they have it.
mikkel_c★★★★★2026-02-26
Vials wrapped individually, foam cut to fit, nothing loose in the box. Packing that has clearly been thought about.
dagny_g★★★★★2025-08-17
No customs paperwork, no import wait — it came from their stock in Canada and arrived day 5.
vito_m★★★★★2025-02-10
Support answered on a Sunday, correctly, with the batch record attached. That is well beyond what I expected.
renzo_s★★★★★2025-12-24
They report purity by RP-HPLC with the wavelength stated and peptide content separately. Two different numbers, correctly separated.
valeria_j★★★★☆2026-03-26
Fair pricing for the documentation standard, and delivery landed on day 3 as quoted.
amara_os★★★★★2026-01-18
7 lots logged now, purity 98.7 to 99.0%. A band that tight is worth more to me than one spectacular number.
Where this supplier comes up
#vendor-talkSupplier experience. Price per mg, lead time, communication, fill consistency.190 mentions#vendor-verificationThe verification log. What counts as evidence and what does not.56 mentions#asiaJapan, Korea, Singapore, Hong Kong, India. Closer is not simpler.36 mentions#uk-irelandNHS pathways, private clinics, MHRA, Border Force, and Irish reimbursement.32 mentions#lab-requestsPooled submissions. Labels off before it ships. Cost split in the pin.32 mentions#paymentsConfirmations, networks, address checks. The room holds no money.31 mentions#semaglutideSemaglutide. STEP and SELECT data, 0.25 to 2.4mg, and what happens above it.24 mentions#test-resultsPost the report, the lot number, and where you bought it. One data point is one data point.21 mentions#shipping-customsTransit times, declared value, seizure letters, cold packs that arrive warm.18 mentions#cagrilintideCagrilintide, amylin analogues, and the combination story.16 mentions
Other source files
Where QYB sells
ChinaPeptides Co., Ltd. (QYAOBIO) 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 QYB at qyaobiopeptides.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.