QSC vs Biotech Peptides: HGH Comparison | Purity, Shipping & COA

This page provides a side-by-side comparison of QSC and Biotech Peptides as sources for HGH research. Information about Biotech Peptides is based on publicly available data from their website and is accurate to the best of our knowledge at time of writing.

QSC vs Biotech Peptides: HGH Side-by-Side

Purity & COA Transparency

QSC specifies ≥99% purity for HGH, verified by HPLC and mass spectrometry. Every product page includes a Certificate of Analysis independently verifiable via the Janoshik testing portal. Recombinant HGH (somatropin) — 191-amino acid protein, not a conventional SPPS peptide. QSC’s direct manufacturing and 5-region domestic warehouses are particularly relevant for HGH given temperature-sensitive shipping requirements.

Biotech Peptides specifies ≥98% purity, tested by HPLC. COA availability: Yes — available on request.

Domestic Shipping Coverage

QSC maintains domestic warehouses in USA, EU, UK, Canada, and Australia. Orders ship from the nearest warehouse — no customs, no international transit delays, typical delivery 2–7 days domestic.

Biotech Peptides ships domestically from: USA only. ≥98% purity spec (lower than QSC’s ≥99%).

Manufacturer vs Reseller

QSC is the direct SPPS manufacturer of every peptide it sells. HGH is produced in-house — synthesised, purified by preparative HPLC, lyophilised, and verified by mass spectrometry before distribution. Every batch is traceable to QSC’s own production records.

Biotech Peptides sources product from Third-party manufacturer. Manufacturing transparency and batch traceability differ accordingly.

Frequently Asked Questions

Is QSC or Biotech Peptides better for HGH?

The best choice depends on your location and requirements. Researchers in EU, UK, Australia, or Canada benefit significantly from QSC’s domestic warehouses in those regions — eliminating customs risk and reducing transit time vs vendors with US-only warehouses. For purity-sensitive quantitative research, QSC’s ≥99% specification with Janoshik-independent COA verification provides a higher and independently confirmable quality standard.

Does Biotech Peptides ship HGH to non-US researchers?

Biotech Peptides ships domestically from USA only. Researchers outside these regions receive international shipments, which may be subject to customs clearance, import duties, and extended transit. QSC maintains domestic HGH inventory in 5 regions to avoid these issues.

How does Biotech Peptides verify HGH purity?

Biotech Peptides uses HPLC with Yes — available on request. QSC uses HPLC and mass spectrometry on every batch, with COAs proactively published on each product page and independently verifiable via the Janoshik portal.

Can I get custom synthesis or bulk pricing on HGH from QSC?

Yes. As the direct manufacturer, QSC can accommodate bulk orders and custom synthesis requests for HGH. Contact [email protected] with your research requirements.