Key Takeaways
- •>99% target peptide by molecular fraction
- •Mass spectrometry identity confirmation
- •Per-product, per-batch purity data publication
- •Rejection of failing batches
- •BPC-157: >99% purity. Check the BPC-157 Research Guide for details.
Every Batch Meets >99% Purity Before Shipment
Independent testing verifies each peptide batch at >99% purity using HPLC analysis. Mass spectrometry confirms the compound's identity. All batches receive 100% testing at third-party labs only.
This multi-layer approach guarantees that researchers receive compounds meeting strict standards. Purity data appears on individual product pages for transparency.
Three Layers of Quality Verification
High-Performance Liquid Chromatography (HPLC) separates molecular components in each batch. It measures the precise percentage of the target peptide, requiring >99% for approval.
Mass spectrometry checks molecular identity. It compares the measured molecular weight to the theoretical value, ensuring the compound matches its description.
Independent third-party analytical laboratories conduct all tests. This setup avoids conflicts of interest, as in-house testing could undermine claims.
Step-by-Step Testing Process
Peptides start with solid-phase peptide synthesis (SPPS), followed by lyophilization into stable powder for storage.
A sample from each production batch undergoes extraction for analysis. Testing occurs batch-by-batch, not through spot-checks or categories.
Samples go to independent labs for HPLC purity checks and mass spectrometry confirmation. The supplier has no role in running or reviewing results.
Batches passing >99% HPLC purity and identity verification get released. Those below the threshold face rejection, with data published on product pages.
Meaning of >99% HPLC Purity
A >99% result indicates that at least 99 out of every 100 parts in the vial is the target peptide. The remaining 1% or less includes synthesis byproducts, truncated sequences, residual solvents, or impurities.
Pharmaceutical compounds for clinical trials demand ≥95, 98% purity. This >99% minimum applies the same benchmark to every research batch.
Key aspects include:
- >99% target peptide by molecular fraction
- Mass spectrometry identity confirmation
- Per-product, per-batch purity data publication
- Rejection of failing batches
Examples of Verified Compounds
Purity testing covers all catalog items. Examples include:
- BPC-157: >99% purity. Check the BPC-157 Research Guide for details.
- GHK-Cu: >99% purity
- TB-500: >99% purity. See the TB-500 Research Guide.
- NAD+ 750mg: >99% purity
- MOTS-C: >99% purity
- Semax: >99% purity
- Pinealon: >99% purity
- CJC-1295/Ipa: >99% purity
Use our Purity Analyzer tool to assess batch quality.
Related Research Compounds
Looking for high-purity research peptides? Browse our catalog for HPLC-verified compounds.
| Compound | Purity | Size | Price |
|---|---|---|---|
| BPC-157 5mg | >99% | 5mg | $34.00 |
| TB-500 5mg | >99% | 5mg | $29.00 |
| CJC-1295 No DAC + Ipamorelin 10mg (5+5) | >99% | 10mg | $49.00 |
| BPC-157 10mg | >99% | 10mg | $44.00 |
Frequently Asked Questions
What purity level do products achieve? All meet >99% via HPLC testing at independent third-party labs.
Who performs the testing? Independent analytical labs handle purity and identity checks. No in-house testing occurs to maintain objectivity.
Where is purity data located? It appears on individual product pages in the catalog. Raw COA documents stay private, but verified data reflects batch standards.
What happens to failing batches? They get rejected and never sell. Only those passing both HPLC and mass spectrometry proceed.
How do HPLC and mass spectrometry differ? HPLC measures purity percentage of the target compound. Mass spectrometry verifies identity by molecular weight match. Both tests are essential.
Key Takeaways on Peptide Quality
Rigorous >99% purity standards ensure reliable research materials. Third-party verification and full batch testing set a high bar matching clinical requirements.
Explore our Free peptide tools like the Peptide Glossary for more insights. Browse the catalog to view purity data.