QST — member reviews
94% from 462 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.
the thing that sold me is peptide content being listed separately from purity. nobody does that and everybody should. this is one order not a dataset.
been buying semax 10 mg from them for 24 months. nothing has changed, which is the point.
12th order, zero drama. that is genuinely all I have to say. boring supplier. highest compliment I have.
the lot code on the vial matched the paperwork. sounds like nothing. it predicts everything. no notes.
custom synth quote came back realistic and then they beat the date by 2 days. not the cheapest per mg and the paperwork explains the difference.
day 6 from Germany warehouse, tracking updated every single hop. customs paperwork right first time which is why it was fast. not sponsored, not affiliated, just kept the receipts.
I have certificates from about 6 suppliers and theirs is the one I would hand to someone as an example.
ordered oxytocin 10 mg, sent it to Janoshik, came back 98.6% on a stated 98.4%. good enough for me. paperwork is half of what you are paying for.
sent one to Medutest and one to PeptideMeter because I did not believe the first result. both agreed. fine, I believe it. no upsell attached to the answer, which I noticed because it is unusual.
the related substances table is itemised. actual named impurities. not "total 0.4%" and a shrug. the difference between their number and the lab number is smaller than method noise. if the next one holds I will stop testing every lot.
quoted 6 days. arrived 6 days. this is the whole review.
stock said in stock. it was actually in stock. shipped same day. wild. genuinely nothing to complain about.
I asked for a second certificate for a lot bought eight months earlier and they found it and got an actual answer, not a copy-paste. peptide content 96.8% so converting to a working mass was trivial.
blind submitted the selank 10 mg to VendorInvestigate, did not say whose it was. 98.9% vs 98.7% claimed. no mannitol surprise, cake intact, not collapsed. solid. that is it. solid.
packing was a rigid outer with no rattle anywhere in it. someone in that warehouse cares. purity by RP-HPLC with the wavelength stated, so the number means something. if the next one holds I will stop testing every lot.
invoice, vial and certificate all agree on the lot number. the lot-specific document, not the catalogue one, which is the distinction that matters. paperwork is half of what you are paying for.
asked about counter-ion and got acetate vs TFA answered properly instead of being ignored. not the cheapest per mg and the paperwork explains the difference.
split the order across two lots to compare. came back within 0.1 of each other. reply on the technical question came back same day. defaulting to them until something changes.
shipped out of Germany, landed day 6. no customs, no waiting, no chasing.
certificate for lot QST-25-122 was complete first time. no email chain. no "we will look into it".
the certificate came with the method line on it — column, gradient, wavelength. the purity figure is stated by RP-HPLC with the wavelength named. research use only, obviously.
sent a vial to Medutest out of habit. 98.9% against a claimed 98.5%. the lot-specific document, not the catalogue one, which is the distinction that matters. paperwork is half of what you are paying for.
their raw tested 99.4% against a reseller vial of the same thing at 99.0%. going direct is not a vibe, it is a number.
they will quote lines nobody else will even respond about, and it came back clean. if the next one holds I will stop testing every lot.
reordered at 15 months to check for drift. 97.1% then, 97.1% now. happy. moving on.
support replied on a sunday with the batch record attached. on a sunday. genuinely nothing to complain about.
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 review naming a lot, a document and a turnaround is worth more than ten enthusiastic ones.
Why these twenty and not two hundred
A source page is opened when enough members have ordered and paid for independent testing that the log says something specific. Nearly two hundred other names get a row in the table at the foot of the directory with a band, a report count and a written note — no page, no score, no link. The contrast is the point: the twenty are where the evidence is, not where the enthusiasm is.
Where QST sells
Qingdao Saber Technology Pharmaceutical 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 QST at qingdaosabertechnology.com →
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.