QSC Peptides — Research Peptide Supplier
QSC Peptides (Qingdao Sigma Chemical) is the supplier behind the Venus Protocol and the Clavicular Ascension Stack. QSC operates as both a direct manufacturer and through a vetted partner network, supplying research-grade peptides to laboratories and researchers in 100+ countries.
Manufacturing & Quality
Core peptides are produced in-house using solid-phase peptide synthesis (SPPS), purified by preparative HPLC, verified by mass spectrometry, and lyophilized. Partner-sourced products undergo the same QSC quality control pipeline.
- ≥99% HPLC purity — every batch, every compound
- Mass spectrometry — molecular identity confirmation
- Janoshik COA — independently verifiable on every product page
- Impurity profiling — deletion sequences and oxidation products
Domestic Shipping
| Region | Delivery |
|---|---|
| United States | 2–5 business days |
| European Union | 2–7 business days |
| United Kingdom | 2–7 business days |
| Canada | 2–7 business days |
| Australia | 2–7 business days |
| International (China) | 7–21 business days |
Payment
QSC accepts Bitcoin (BTC) and USDT ERC-20 cryptocurrency for all orders worldwide.
Curated Research Stacks
| Stack | Compounds | Target | Link |
|---|---|---|---|
| Venus Protocol | 10 compounds, 100 vials | Women's health | Shop → |
| Clavicular Ascension Stack | 12 compounds, 110 vials + 100 tablets | Men's looksmaxxing | Shop → |
All Venus Protocol Compounds from QSC
Retatrutide 10mg · GHK-Cu 100mg · NAD+ 500mg · L-Glutathione 600mg · BPC-157 10mg · TB-500 10mg · PT-141 10mg · Epitalon 10mg · CJC-1295 5mg · Ipamorelin 5mg
Browse QSC Peptides
75+ research compounds in stock. ≥99% purity. Free domestic shipping.
Browse All QSC Peptides →Venus Protocol
Buy Compounds
Midas Longevity Protocol
The Midas Longevity Protocol is QSC's 12-compound anti-aging stack: NAD+, Epitalon, GHK-Cu, SS-31, FOXO4-DRI, Thymosin Alpha-1, BPC-157, TB-500, CJC-1295, Ipamorelin, Glutathione, Humanin. No androgens. View at QSC →