We offer three verification tiers so researchers can choose the level of documentation and testing that best fits their needs.
GreyLine™ — Basic Savings
Third-party sourced products supported by vendor-provided documentation.
- Vendor COA provided
- No GCA in-house testing
- Lowest cost option
Best for: Budget-conscious research where vendor documentation is sufficient.
BlackLine™ — Fully Verified
Products sourced and verified directly by GCA.
- GCA-sourced batches
- Mass, purity & identity (ID) tested
- Independent third-party verification
Best for: Researchers who want verified quality and consistency.
BlackLine+™ — Highest Verified
Our most rigorous verification level for select batches.
- GCA-sourced batches
- Mass, purity & identity (ID) tested
- Select endotoxin testing
Best for: Researchers seeking the highest level of verification available.
Choose Your Level of Verification
Every GCA™ product is clearly labeled by tier so you always know exactly what level of verification you’re purchasing.
Important Research Use Disclaimer
All products sold by Gulf Coast Aminos (GCA™) are for laboratory research use only.
Not for human or veterinary use, consumption, diagnosis, treatment, or prevention of any disease.
Product verification tiers describe documentation and analytical testing only and do not imply fitness for any specific application beyond laboratory research.
By purchasing, the buyer certifies that they are a qualified researcher and that all products will be handled and used in compliance with applicable laws and regulations.

