Frequently asked.

All compounds are manufactured to meet or exceed 99% purity as verified by High-Performance Liquid Chromatography (HPLC). The actual purity percentage is documented on the batch Certificate of Analysis (CoA). Batches failing to meet the purity specification are rejected and not released.

Compound verification uses two complementary analytical techniques. HPLC quantifies purity by measuring the target compound peak relative to all detected peaks. LC-MS/MS confirms molecular weight and structural integrity by measuring mass-to-charge ratios. Both methods are performed by third-party ISO 17025 accredited laboratories. Endotoxin testing via LAL assay is performed for compounds intended for cell culture applications.

Each CoA documents the compound name, CAS number, molecular formula, molecular weight, HPLC purity with chromatogram, LC-MS identity confirmation with observed versus theoretical mass, batch number, and testing dates. Endotoxin results are included where applicable. Retain your CoA with laboratory records for experimental documentation.

Valitec holds inventory in sealed, crimp-capped research vials consistent with the stability requirements of lyophilized compounds. Storage conditions for each compound are documented on the product label and Certificate of Analysis. All compounds are for laboratory research use only.

All orders ship in protective insulated packaging. Standard expedited shipping is available for domestic US orders with tracking provided at time of shipment. Orders are processed within 1-2 business days. International shipping is available to select countries; customers are responsible for import compliance and applicable duties.

All sales are final. Valitec Peptides does not accept returns or issue refunds under any circumstances. Compounds are research-grade materials for in vitro laboratory research only. If a shipment arrives missing, incorrect, or damaged, contact support immediately — cases are reviewed promptly and we are committed to making it right. Cancellations must be emailed before shipment; once dispatched, no changes or cancellations. Full terms are on the Refund policy page.

No. All compounds are sold strictly for laboratory research use only. They are not intended for human or animal use, and are not drugs, supplements, or food. Statements have not been evaluated by the FDA. Purchasers must be 21 or older.