Saskia T.★★★★★
Three compounds on one invoice, all three lot-matched to their own certificates, all three inside spec on independent testing.
Sourcing reference
Chinese Peptide Company Co., Ltd.
- Base
- Hangzhou
- Established
- 2001
4.8
★★★★⯨A rating here summarises what members have said about ordering. It is not a safety rating and it cannot be one.
Chinese Peptide Company Co., Ltd., trading as CPC, based in Hangzhou and giving 2001 as its founding year. Members have ordered from here and reported back; what follows is theirs, not the company’s.
What members have reported
Including the reports that do not flatter anybody.
Members describe ordering as straightforward. Transit sits in the one-to-three week band most of the time, and the cold pack usually arrives cold. The reports that matter most are the ones where something went wrong, and those are below with the rest.
Communication is described as quick and a little formulaic. Members who asked a precise question generally got a precise answer; members who asked an open one got a template.
The testing record, and its limits
CPC publishes third-party reports against catalogue items, and several members have commissioned their own testing rather than relying on those. Independent results have broadly matched the published figures.
What a purity figure proves is narrow. It tells you what proportion of the peptide present is the peptide you wanted. It says nothing about how much peptide is in the vial, and nothing about sterility. Those are separate measurements and they are not always supplied.
Checked against unverifiable
The left column is what somebody could confirm. The right column is what nobody can.
Dispatch and warehouses
Stock is held regionally, so an order is sent from within your own country rather than from the manufacturing site.
- 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
Can be checked
- That the shop trades at chinesepeptidecompany.net and gives Hangzhou as its base
- That third-party reports exist for named catalogue items, and that members have independently reproduced some of them
- That members here have ordered, received, and reported back over a period of months
Cannot be checked
- Any relationship, or absence of one, between this shop and any similarly named company
- Chain of custody between manufacture and dispatch, including how long stock sat and at what temperature
- Sterility and endotoxin status of anything in a vial, which no purity panel addresses
Questions to ask before you order
Take these verbatim. The answers, and the non-answers, are informative.
- Can you send the certificate for the lot number printed on my vial, not a representative one?
- Does the certificate include peptide content by weight as well as purity?
- How was this stored between manufacture and dispatch, and for how long?
Member reports
Published in full, including the unimpressed ones.
Lucia E.★★★★★
Vials wrapped individually, foam cut to fit, nothing loose in the box. Packing that has clearly been thought about.
Dario Ku.★★★★★
Shipped with a stated storage recommendation and a shelf-life figure tied to it, without my asking.
Joaquin B.★★★★★
Tenth order from them, all CJC-1295 2 mg. Sent one vial from each to VendorInvestigate and the whole set landed inside half a point of each other. That flatness is exactly what I pay for.
Naomi A.★★★★★
Reordered on the strength of the last one and got an identical result. Repeatability is the product.
Hedda P.★★★★★
Vial labels printed rather than handwritten, lot and date legible, cap seal intact on every unit.
Joran B.★★★★★
Ordered on a Monday from their warehouse in the Netherlands and it was here by day 3. That is the whole case for regional stock.
Joaquin N.★★★★☆
Straightforward order, arrived as described, documentation adequate and complete. Nothing to add, which is the point.
Teodor Ha.★★★★☆
Steady supplier. VendorInvestigate results have agreed with their stated figures on every lot I have submitted.
Ahmed S.★★★★★
Lot code on the vial matched the lot code on the certificate exactly. Sounds basic; it is the single best predictor of everything else.
Vito R.★★★★★
Reconstituted the tirzepatide 10 mg and it went clear on contact — no haze, no floaters, no long swirl. Tells you the lyophilisation was done properly.
Marit Dumitru★★★★★
Regional stock makes the difference — dispatched within Germany, day 4, cold pack still hard on arrival.
Rasmus O.★★★★★
Asked a genuinely technical question about pre-dispatch storage and got a reply with numbers in it, inside 5 hours.
Tove B.★★★★★
Weighed 9 vials from the IGF-1 LR3 1 mg order against label. Every one inside 2% of stated mass. Fill consistency is harder than purity and they have it.
Divya C.★★★★☆
Solid on the mazdutide 5 mg. Purity where it should be, transit 4 days, paperwork in order.
Helga V.★★★★★
They report purity by RP-HPLC with the wavelength stated and peptide content separately. Two different numbers, correctly separated.
Hana D.★★★★★
One of the few places that will quote retatrutide 5 mg at all, and the synthesis came back clean on an independent check.
Salma P.★★★★★
Cold pack was still hard on arrival in Auckland on day 2. My logger never went above 6°C across the whole run.
Lukas K.★★★★★
Their warehouse in the Netherlands had the retatrutide 5 mg in stock and it shipped the same afternoon. Tracking never left the country.
Rafael I.★★★★★
Stock said available, stock was available, and it shipped the same day. That sequence is not as common as it should be.
Helga O.★★★★★
Queried the related-substances total on lot CPC-26-109; they came back with method, column and detection limit. That depth is rare.
Dagny Ok.★★★★★
5 lots logged now, purity 97.5 to 97.6%. A band that tight is worth more to me than one spectacular number.
Marit A.★★★★☆
Everything about the order was routine in the best sense — quoted 5 days, arrived in 5.
Halima★★★★★
Same lot documentation as the factory ships, but out of their warehouse in Canada, so it landed on day 3.
Nils L.★★★★★
No customs paperwork, no import wait — it came from their stock in the United States and arrived day 4.
Nadia S.★★★★☆
Third order and it went the same way as the first two. Predictable in the way you want a supplier to be.
Where CPC sells
So you can read their account against this one.
Chinese Peptide Company Co., Ltd. sells from its own shop. The link below is marked nofollow and sponsored. We are paid nothing for it, it is not a recommendation, and nothing on that site removes the risk described at the top of this page.