Quality Control Policy
No shortcuts.No compromises.
Every compound we ship is independently verified for purity, identity, and integrity. Here is exactly how we do it — and what we guarantee.
Sourcing &Intake.
Quality begins before a compound ever enters our facility. Supplier selection is not a cost decision — it is a standards decision.
Supplier Qualification
We source exclusively from manufacturers operating under current Good Manufacturing Practice (cGMP) standards. Every supplier in our network is evaluated for synthesis methodology, documentation standards, and demonstrated track record before any compound is accepted for sale.
Intake Inspection
Every batch received undergoes intake inspection before entering inventory. We verify packaging integrity, lot documentation, and preliminary identity against supplier-provided specifications. Any batch with irregularities in documentation or physical condition is quarantined and not released for sale.
Lot Traceability
Every compound is assigned a lot number at intake. This number is maintained through testing, storage, fulfillment, and published on the Certificate of Analysis. If a question ever arises about a specific product, the entire chain of custody can be traced back to the original batch.
HPLCVerification.
High-Performance Liquid Chromatography is the industry standard for peptide purity analysis. We use it on every batch, with no exceptions.
How HPLC Works
A sample from each batch is injected into an HPLC system and separated by its chemical components under high pressure. Each component produces a distinct peak on the chromatogram. Purity is calculated by measuring the target peptide’s peak area as a percentage of total peak area across the entire sample.
Our Threshold
Every batch must meet a minimum purity of 99%+ by HPLC before it is released for sale. Batches that fall below this threshold are rejected — not discounted, not relabeled, not sold. Rejected batches are destroyed.
| Parameter | Specification | Status |
|---|---|---|
| Minimum purity | ≥99.0% by HPLC | Required |
| Typical result | 99.2% – 99.8% | Pass |
| Testing frequency | Every batch | 100% |
| Lab type | Independent, USA-based | 3rd Party |
Mass SpecIdentity.
Purity alone does not confirm identity. Mass spectrometry verifies that what is in the vial is exactly what is on the label.
Why Identity Confirmation Matters
A sample can be 99.9% pure and still be the wrong compound. HPLC measures purity — it does not confirm what the compound actually is. Mass spectrometry closes this gap by providing a definitive molecular fingerprint.
How Mass Spectrometry Works
The compound is ionized and accelerated through a mass analyzer. The resulting mass-to-charge ratio produces a spectrum unique to that molecule’s molecular weight and fragmentation pattern. This is compared against the theoretical spectrum for the target peptide. A match confirms identity with high confidence.
Together, these two methods provide the most comprehensive pre-shipment verification available in the RUO peptide space. Both are conducted on every batch, by the same independent laboratory.
Certificateof Analysis.
Every batch has a COA. Every COA is published. No exceptions, no cherry-picking.
What a COA Contains
Each Certificate of Analysis documents the complete testing record for a specific batch. It is issued by the independent laboratory — not written by us — and published here exactly as received.
- Product name and lot number
- HPLC purity percentage with chromatogram
- Mass spectrometry identity confirmation
- Testing laboratory name and accreditation
- Test date and batch-specific reference number
How to Access COAs
All COAs are published on our Certificate of Analysis page, organized by product. You can view and download the full report for any batch we have shipped. No login required.
Storage &Handling.
Purity verified at the lab can be degraded by poor storage. We treat handling as an extension of quality control, not a logistics afterthought.
Cold Storage Protocol
All lyophilized (freeze-dried) peptides are stored at −20°C in controlled-environment conditions from intake through fulfillment. Temperature logs are maintained. Products are never stored at ambient temperature during the holding period.
Packaging Standards
Each vial is sealed under inert atmosphere to minimize oxidative degradation. Packaging materials are selected for chemical compatibility with the compounds they contain. Blended products are individually sealed by component where stability profiles differ.
Fulfillment Handling
Orders are picked and packed in a controlled environment. For time-sensitive or temperature-sensitive shipments, appropriate cold-chain packaging is used. Once transferred to the carrier, our handling responsibility ends — which is why we select carriers with reliable track records for the product categories we ship.
| Condition | Standard |
|---|---|
| Storage temperature | −20°C (lyophilized peptides) |
| Atmosphere | Inert gas sealed |
| Facility type | Controlled environment |
| Carrier selection | USPS / UPS — destination dependent |
We standbehind it.
If independent third-party testing at a licensed facility returns a purity result below the labeled specification for any product you’ve purchased from us, we will make it right — no arguments, no bureaucracy.
Submit your third-party COA with your order details and we will review within 48 business hours.
Submit a Claim