QSC Peptides
Tracked since Sep 2026 · monitored, not yet independently tested.
We do not sell or fulfil any product. This never affects rankings or scores.
Report an issue with this profileWhy this score
The score card above, in plain words. Every line comes from the data we hold on this supplier, nothing is written by hand.
QSC Peptides sits at 6 out of 60. Low. Most of the gap is reviews.
We have not lab-tested anything from them yet, so the 40 points for Lab Verification are off the table for now. What you see is built from three public signals.
Reviews: 0 of 25. We found no review record for them on the platforms we monitor.
Community: 4 of 20. Forum and Reddit talk raises serious red flags. Nobody has posted a verified review on PeptideScanner yet, so this rests on what is said elsewhere.
Transparency: 2 of 15. They say they provide in-house certificates of analysis, but points come from certificates we can actually find and check, and we could not find one.
We watch 31 of their products. Prices last checked 21 Sept 2026.
COA availability
The supplier's own published certificate is their statement. Our independent lab result is ours. We never merge the two.
QSC Peptides states it provides in-house certificates of analysis for its products.
We have not independently lab-tested any product from this supplier. No PeptideScanner result is available — this is not a negative signal, just no data yet.
Products & pricing (31)
Per-product price and $/mg for single peptides, sourced from live listings.
Community signals
A summary of public discussion — a sibling signal, distinct from our verdict and our own reviews.
qsc-usa.com now 301-redirects to qscpeptide.com (fetched 2026-09-22), which per serp claims to be the 'only official storefront' of QSC / Qingdao Sigma Chemical. The QSC brand itself is widely discussed (Reddit, thepeptidelist review, Finnrick historical mixed results under 'Qingdao Sigma Chemical QSC') but no threads mention qsc-usa.com specifically (site:reddit.com search empty). Ecosystem is impersonation-heavy: warnings about fake Telegram/WhatsApp QSC channels and clone domains (qingdaosigmachems.com etc.). Scam-Detector 28.5 and Gridinsoft 1/100 for qscpeptide.com (serp). thepeptidelist (2026) says QSC operator identity/warehouses unresolved.
Customer reviews
This supplier has 31 products tracked and is monitored — not yet independently tested. Be the first researcher to leave a review.
What the badges mean
We have independently lab-tested products from this supplier. The badge carries the test date and the named lab. Earned and rare — no supplier holds it yet.
Monitored but not yet tested by us — the default state for a supplier we are following. Trust Score capped at 60.
Documented counterfeit or non-delivery signals. Never presented as a recommendation in any sort order.
A published COA is not a badge tier. It is the supplier's own claim, shown separately above — never merged with our independent result.