What is documented about Qingdao Sigma Chemical
Are Qingdao Sigma Chemical's prices unusual?
nothing on record
We have no price list from this supplier.
Without a price list we cannot say whether the prices stand out.
Are there lab reports on Qingdao Sigma Chemical?
well documented
The tested samples reached the purity this market usually delivers.
39 lab reports · 4 from the last 7 months
Substances named:HGH 100 · HGH + dimer · Somatropin · P-21 · Epithalon · PT-141 (Bremelanotid) +16 more · from 38 of 39 reports
What was tested is the product, not the supplier. It changes nothing about the other findings on this page.
What does the community report about Qingdao Sigma Chemical?
nothing on record
What counts here is the hard finding, not the mood - so the feedback is not scored separately.
7 independent sources · 4 channel types · largest group: 5,603 members (as of Aug 2, 2026)
Astroturf: low
People who post in a supplier's own group are rarely uninvolved.
Are there fraud reports about Qingdao Sigma Chemical?
notable
Documented allegations exist, but not yet a pattern.
10 documented allegations · from one source
An allegation is a report, not a verdict.
Do orders from Qingdao Sigma Chemical arrive?
notable
A notable share of the reported orders went wrong.
5 of 7 reports confirm an arrival · 2 deliveries never arrived · from 4 sources
People who never got their delivery report less often than people who are happy.
Colours on the dimensions
Green better than the market average, or positive feedback from neutral sources
Amber somewhat worse than the market average, or some negative feedback
Red clearly worse than the market and a striking amount of negative feedback
Grey no finding, no statement possible right now
The bar says how much sits behind the colours: across how many dimensions solid data exists. It does not rate the supplier.
Contact
Anyone who messages you unprompted is almost always a scammer - even when the profile picture and name match the supplier exactly. How contact works
Supplier channels
Channels tied to the supplier itself rather than to one person.
- Domains qsc-usa.com checked Aug 26, 2026
A domain proves no identity. It is the starting point for your own check.
Orders can be placed directly on the supplier's own website. Checked on Aug 19, 2026.
Evidence extract
Community 130 Allegations 10 Fulfilment 10
This link leads to a Telegram group
The post is not on a regular website. You will land in Telegram or Discord. If you are not a member yet, you will first see a join request - you can only find the post after the group lets you in.