Purity is the product
A research reagent that isn’t what its label says is worse than useless. It invalidates the work built on it. That’s why every Halotir Labs batch passes a documented, independently verified release process before a single vial ships.
every lot is held to a ≥99% purity target, verified by HPLC
HPLC for content, mass spectrometry for identity
raw material to sealed vial, documented at each stage
lots that miss the target are rejected, never blended down
Our commitment
- ≥99% purity target on every lot. Batches that miss the standard are rejected outright, never discounted, relabeled, or blended down.
- Independent verification. Purity and identity are confirmed by third-party U.S. analytical laboratories, not just in-house instruments.
- Documentation on request. Each lot’s Certificate of Analysis is held on file and tied to the batch number on your vial. Request it and we’ll send the report for that lot.
- U.S.-based operations. Sourcing, quality control, and fulfillment run domestically under documented procedures.
The release process, step by step
Raw-material verification
Incoming amino-acid derivatives and reagents are checked for identity and purity before they enter production.
Controlled synthesis
Peptides are assembled by solid-phase synthesis under controlled cleanroom conditions with in-process checks.
Purification
Crude product is refined by reverse-phase HPLC until it meets the release specification.
Analytical confirmation
Finished lots are analyzed by HPLC for content and by mass spectrometry for identity, including an independent pass at our Los Angeles testing laboratory.
Documentation
A Certificate of Analysis is generated for the lot, with batch records retained for full traceability.
Sealed packaging
Lyophilized product is filled into sterile vials, sealed, and held in climate-controlled storage until dispatch.
- Purity
- HPLC
- Identity
- Mass spec
- Certificate
- Per lot
Every lot we release has a Certificate of Analysis held on file, tied to the lot number printed on the vial. Send us the number and we’ll email that lot’s report.
Reading a Certificate of Analysis
Each COA reports the batch number, analysis date, HPLC purity result, mass-spectrometry identity confirmation, and the testing laboratory. Send us the batch number printed on your vial and we’ll return the certificate for that lot. Here is how to request one. If anything doesn’t line up, contact support and we’ll pull the batch record.
Continuous auditing
Quality isn’t a one-time certification. We periodically re-audit process steps, rotate verification samples through independent laboratories, and update procedures as analytical methods improve. When we change something material to quality, the change is reflected in subsequent batch documentation.