Frequently Asked Questions
Plain answers about intended use, sourcing, analytical documentation, and shipping.
Analytical documentation
How do I request a Certificate of Analysis?
Email
support@peptalabs.com. Reports are available by email request only and are not downloadable from product pages.
What testing is represented by the report?
The represented independent testing is HPLC purity analysis and mass-spectrometry identity confirmation. Pepta Labs does not claim sterility, endotoxin or LAL, potency, pharmaceutical-grade, or cGMP release testing. Reported purity is shown on each product page.
Why does the report not name Pepta Labs?
Products are sourced through a cooperative purchasing arrangement. The purchasing group commissions testing, so the report may name the group or source as the client. Supplier-identifying fields are redacted before sharing.
Shipping and storage
No. Compounds ship as lyophilized powder at ambient temperature without cold packs or insulated packaging. Dry powder is substantially more thermally stable than reconstituted solution, and short-term ambient exposure in transit is not expected to meaningfully affect purity.
How should unopened vials be stored?
Refrigerate lyophilized powder at 2–8°C on arrival or store at -20°C long term. Keep vials sealed, dry, and protected from light.
Intended use and sourcing
Are products for human or animal use?
No. Products are intended and offered solely for laboratory research. They are not for human or animal use, consumption, administration, clinical use, diagnosis, or treatment. We do not provide dosing, injection, administration, or reconstitution guidance.
Does Pepta Labs manufacture or test the compounds?
No. Pepta Labs is a supplier and reseller, not a manufacturer or testing laboratory. The cooperative purchasing group places volume orders with manufacturers and funds independent HPLC and mass-spectrometry testing.