The maroon-label standard for research-grade peptides

ProGrade is an independent supplier of reference-grade research peptides and cofactors, organized around the MODE system — a curated map of 23 compounds across four research protocols: Metabolic, Recovery, Longevity, and Performance. Every listing is written for scientific accuracy and framed for research use only.

We are not a mass marketplace. The catalog is deliberately narrow so that each compound can be sourced, documented, and handled to a single, uncompromising standard.

Purity is a claim until it is documented. Every production lot is analyzed by Janoshik Analytical, an independent, industry-recognized laboratory, using validated methods:

• HPLC-UV for peptide purity, released against a ≥99% standard.
• LC-MS to confirm the exact molecular identity and mass of each compound.
• ICP-MS heavy-metals screening to confirm each batch is clean.
• LAL endotoxin testing within specification.

A batch-specific Certificate of Analysis is issued for every lot and is available on request or through the COA library.

Lyophilized peptides are stable, but handling still matters. Vials are stored refrigerated or frozen, protected from light, and shipped in temperature-aware packaging. In-stock orders placed before the daily cutoff dispatch same or next business day via fast, tracked domestic carriers.

The data is the product, so we put it in writing: if an independent HPLC test on a vial you received returns below our stated purity standard, we refund the full order and the cost of the test. See our returns & guarantee policy for details.

Reach the team at support@progradepeptides.com, or explore a wholesale / lab account for volume research procurement.