Certificate of Analysis Library
Every batch of peptides sold by Peptide California undergoes rigorous quality testing. Certificates of Analysis (COAs) are available for all our products.
How to Access COAs
- Product Pages: Each product page includes a dedicated Certificate of Analysis tab where you can download the current COA as a PDF.
- Email Request: For COAs from specific batches, contact us at info@peptidecalifornia.com with the product name and batch number.
- Order Confirmation: COAs are included with all shipments and can be re-requested at any time.
What Our COAs Include
- HPLC purity analysis results
- Mass spectrometry verification
- Appearance and physical characteristics
- Peptide content analysis
- Batch/lot number and date of analysis
- Testing laboratory identification
Our Quality Standards
All products meet a minimum purity threshold of >98% as verified by HPLC. Products that do not meet our stringent quality standards are not released for sale.