MagellanRx Peptide Sciences Vendor Review → QSC | Research Peptides
QSC · RESEARCH CATALOG
MagellanRx Peptide Sciences Vendor Review → QSC | Research Peptides QSC vs MagellanRx · Independent Janoshik COA · ≥99% HPLC · US Research Supplier
MagellanRx (magellanrx.com) is a pharmacy/health analytics platform that published a vendor review of Peptide Sciences. With Peptide Sciences now shut down, researchers reading that review and looking for a verified alternative are searching for the best current option. QSC is the leading PS alternative with the independent Janoshik COA advantage.
Peptide Sciences permanently shut down operations in late 2024/early 2025. QSC (qscpeptide.com) is the primary alternative, stocking the full PS catalog plus compounds PS never carried.
Independent Janoshik COA vs PS Internal COA
PS used internal-only COA — unverifiable. QSC uses Janoshik independent COA published at verify.janoshik.com — any researcher can verify without trusting QSC.
No — Peptide Sciences permanently shut down operations. Their website confirms they have discontinued all sales. QSC (qscpeptide.com) is the leading alternative, stocking the full PS catalog plus 30+ additional compounds at ≥99% HPLC with Janoshik independent COA.
What did MagellanRx say about Peptide Sciences?
MagellanRx reviewed Peptide Sciences as a mid-premium US supplier with internal-only COA. QSC improves on this with independent Janoshik COA (verifiable at verify.janoshik.com) — a significant trust advantage.
What is the best Peptide Sciences replacement?
QSC (qscpeptide.com) is the most direct replacement: same compound range, US-based, but with Janoshik independent COA verification that PS never offered. Also stocks novel compounds PS didn’t carry.
Switch to QSC — The Verified Alternative to MagellanRx
