SigmaStacks supplies research-grade peptides to laboratories, institutions, and independent researchers. We exist for one reason: purity you can verify.
Material is supplied as a lyophilized powder and assayed by HPLC-MS. Certificates of Analysis are published per lot as assays complete, so you can check the exact lot in your hand rather than take our word for it.
Our standards
- HPLC-MS identity and purity assays
- Certificates published per lot, not per product
- Lyophilized and shipped to preserve integrity
- Sourced from cGMP-aligned manufacturing
Important
All products are sold strictly for research use only. They are not for human consumption and not for veterinary use, and are not intended to diagnose, treat, cure, or prevent any disease. By purchasing, you confirm you are 21+ and a qualified researcher using these materials for legitimate in-vitro / laboratory research.