Research Peptide Vendors

1 vendors with independent trust ratings, COA verification data, and full peptide catalogs. Ranked by Finnrick grade where available.

Research use only. These vendors supply peptides for laboratory and research purposes — not for human consumption or therapeutic use. Always verify third-party lab testing before any research use.

Showing grade F vendors clear

Nantong Guangyuan Chemical Co., Ltd.

Global SupplierWorldwide

Direct manufacturer and exporter of research-grade peptides, SARMs, and raw compounds based in Nantong, China. Operates GMP-standard facility with peptide synthesis, tableting, and formulation capabilities. All products independently tested by Janoshik Analytical with COAs available.

See the US GMP API manufacturers behind these products