About QSC Clinic
qsc-clinic.com is the clinical research information resource for QSC (Qingdao Sigma Chemical Co., Ltd.), a research-grade peptide supplier founded in Qingdao, China.
QSC Manufacturing
QSC compounds are synthesised using Fmoc solid-phase peptide synthesis (SPPS) at the Qingdao manufacturing facility. After synthesis, compounds undergo HPLC purification to achieve ≥99% purity before lyophilisation, vial filling, and batch testing.
All batches are independently tested by Janoshik Analytical Laboratories using reverse-phase HPLC (purity) and ESI-MS (identity confirmation). COAs are publicly verifiable at qscpeptidelab.com.
QSC Network
| Site | Purpose |
|---|---|
| qscpeptide.com | Main QSC store — all compounds |
| qscpeptide.com | QSC peptide information hub |
| qscpeptidelab.com | Lab / COA / manufacturing info |
| qscwellness.com | Wellness and lifestyle editorial |
| qscrx.com | Clinical practitioner resource |
| qscglp1.com | GLP-1 compound reference |
| qsc-hgh.com | HGH/GH axis compound reference |
| midasmill.com | Midas Longevity Protocol |
| clavicularpeptides.com | Clavicular Ascension Stack |
| clavicularpeptide.com | Venus Protocol |