CPC — member reviews
96% from 1,092 member reports. 26 are published in full below; the rating aggregates all of them. Reviews without an order date or a testable claim are not counted.
This community's number, not a fleet-wide one. Independent groups scoring the same vendor land within a few tenths of each other, and where they diverge it is usually because one group weights logistics and another weights purity consistency.
One of the few places that will quote KPV 10 mg at all, and the synthesis came back clean on an independent check.
Arrived on day 5 against a quoted 5. Customs paperwork was right first time, which is why it moved that fast.
Sixth order from them, all semax 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.
Every certificate I have from them is lot-specific. Not one batch-level document in 8 orders.
7 lots logged now, purity 98.7 to 99.0%. A band that tight is worth more to me than one spectacular number.
Documentation is complete and the numbers are steady. A dependable choice for routine work.
Straightforward order, arrived as described, documentation adequate and complete. Nothing to add, which is the point.
Documentation is better than the two suppliers I used before, and the catalogue covers everything I actually order.
No customs paperwork, no import wait — it came from their stock in the Netherlands and arrived day 4.
Peptide content reported at 98.8% alongside the purity figure, so I could convert straight to a working mass.
Lot code on the vial matched the lot code on the certificate exactly. Sounds basic; it is the single best predictor of everything else.
Vials wrapped individually, foam cut to fit, nothing loose in the box. Packing that has clearly been thought about.
Stock said available, stock was available, and it shipped the same day. That sequence is not as common as it should be.
Queried the related-substances total on lot CPC-24-918; they came back with method, column and detection limit. That depth is rare.
Shipped from their warehouse in Australia, arrived day 2, documentation complete.
Asked them to hold an order until I confirmed a lot number and they did, without fuss and without a restocking charge.
Certificate claimed 98.8% on lot CPC-26-564. VendorInvestigate came back 99.3%. On an independent column that is as close to agreement as this gets.
Their raw material tested 98.8% against a reseller vial of nominally the same compound at 98.3%. Going direct is the whole argument.
Ordered on a Monday from their warehouse in Australia and it was here by day 4. That is the whole case for regional stock.
Regional stock makes the difference — dispatched within the Netherlands, day 2, cold pack still hard on arrival.
Solid on the tirzepatide 10 mg. Purity where it should be, transit 3 days, paperwork in order.
First order, deliberately small, PT-141 10 mg only. Documentation, transit and a Medutest result at 97.8% all checked out, so the next one will not be small.
Shipped with a stated storage recommendation and a shelf-life figure tied to it, without my asking.
Held locally in Australia, so the ipamorelin 5 mg arrived on day 5 without an import step.
The certificate for lot CPC-25-396 carried method, wavelength, water content and an itemised related-substances table. Complete on the first pass.
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.
What a useful review looks like
Order date, what was ordered, what arrived, how long it took, and whether anything was independently tested. That is it. "Great vendor, fast shipping, A+++" is worth nothing and gets removed; a three-star review explaining precisely what went wrong and how it was handled is worth more than ten five-star ones.
Why the negative ones stay up
A directory of nothing but praise is a marketing brochure. Every source page here carries the disappointing results as prominently as the good ones, and the vendors near the top of the ranking are there because their bad entries are few and old, not because there are none.
Where CPC sells
Chinese Peptide Company Co., Ltd. sells from its own storefront. The link below is marked nofollow and sponsored and is here so you can read what they say about themselves against what this page says about them. GLP Research Hub is paid nothing for it, and a link is not a recommendation.
Visit CPC at chinesepeptidecompany.net →
A good record predicts your batch. It does not guarantee it, and no storefront can. Check the lot on the vial against the lot on the certificate.