ChinaPeptides Co., Ltd. (QYAOBIO)

Quoted 4 days, arrived in 3. Tracking updated at every hop from dispatch to door.

Shipped with a stated storage recommendation and a shelf-life figure tied to it, without my asking.

5 orders in eighteen months, no substitutions, no reformulations, everything in stock when the site said it was. Boring is the highest compliment I have.

Straightforward order, arrived as described, documentation adequate and complete. Nothing to add, which is the point.

Held locally in the United Kingdom, so the KPV 10 mg arrived on day 3 without an import step.

No customs paperwork, no import wait — it came from their stock in the Netherlands and arrived day 3.

Weighed 9 vials from the glutathione 600 mg order against label. Every one inside 2% of stated mass. Fill consistency is harder than purity and they have it.

Steady supplier. Medutest results have agreed with their stated figures on every lot I have submitted.

First order, deliberately small, selank 10 mg only. Documentation, transit and a PeptideMeter result at 97.4% all checked out, so the next one will not be small.

Dispatched from their warehouse in the Netherlands rather than from the factory, so the epithalon 10 mg was with me on day 3.

Submitted the hexarelin 5 mg to PeptideMeter blind, without telling them the source. 99.5% against a stated 99.0%. The number holds up when nobody knows whose vial it is.

Custom synthesis quote came back with a realistic timeline and they beat it. Purity on delivery matched the signed spec.

Vials wrapped individually, foam cut to fit, nothing loose in the box. Packing that has clearly been thought about.

Same lot documentation as the factory ships, but out of their warehouse in the United Kingdom, so it landed on day 2.

Consistent rather than flashy. Everything lands in the high nineties, and it lands there every time.

Solid on the BPC-157 5 mg. Purity where it should be, transit 3 days, paperwork in order.

Peptide content reported at 98.7% alongside the purity figure, so I could convert straight to a working mass.

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.

Lot code on the vial matched the lot code on the certificate exactly. Sounds basic; it is the single best predictor of everything else.

VendorInvestigate has now seen 7 of their lots through me. Not one has come back outside spec.

Cold pack was still hard on arrival in Gothenburg on day 3. My logger never went above 7°C across the whole run.

Reconstituted the hexarelin 5 mg and it went clear on contact — no haze, no floaters, no long swirl. Tells you the lyophilisation was done properly.

3 lots logged now, purity 99.4 to 99.8%. A band that tight is worth more to me than one spectacular number.

The certificate for lot QYB-26-924 carried method, wavelength, water content and an itemised related-substances table. Complete on the first pass.

Moved here after two bad lots elsewhere. 8 orders in and the PeptideMeter numbers have been flat every single time.

Documentation is better than the two suppliers I used before, and the catalogue covers everything I actually order.