Tester Business is a leading pharmaceutical peptide brand based in Vancouver, dedicated to advancing longevity science and wellness solutions. Specializing in high-quality peptide products, they serve researchers, clinics, and practitioners seeking reliable compounds for their longevity-focused protocols. With a commitment to excellence and innovation, Tester Business bridges the gap between cutting-edge peptide research and practical application. Connect with their team through their website at tester.com or follow their latest updates on Instagram and TikTok @tester.

GMP-manufactured, USA-made research peptides using advanced solid-phase synthesis and purification. Also operates as Limitless Biotech. Named Best Peptides Company of 2024.

B2B peptide supplier based in Silicon Valley serving academic labs, biotech, and pharma companies since 1993. Manufactures research peptides, antibodies, and assay kits for preclinical research.

US-based supplier offering research peptides with multiple domestic warehouse locations in TX and DE. Known for competitive pricing and product variety.

US-based research peptide and reagent supplier focused on COA transparency. All sourcing, testing, and fulfillment handled within the United States. Wholesale and bulk options available.

US-based research peptide supplier publishing full third-party COAs for every batch. Tests every batch for minimum 95-98% purity. All COAs issued by independent external laboratories.

Founded 2018. One of the largest selections of research peptides available online. Catalog includes BPC-157, Sermorelin, Ipamorelin, TB-500, and many others for research use only.

Los Angeles-area longevity clinic offering customized peptide therapy including BPC-157 with acoustic soundwave therapy. Focuses on hormone balance, libido, stamina, and overall vitality.

Full-service wellness and anti-aging clinic offering BPC-157, CJC-1295/Ipamorelin, Sermorelin, Tesamorelin, and GHK-Cu peptide therapies. Also provides hormone therapy, medical weight loss, and IV therapy.

Board-certified Internal Medicine physician and attending at Lenox Hill Hospital. NYC peptide therapy specialist offering Sermorelin, Ipamorelin, and Tesamorelin protocols. Telehealth available.

DuPage County wellness clinic offering BPC-157, Sermorelin, TB-500, PT-141, and GHK-Cu peptide therapies. Serves Downers Grove, Naperville, Oak Brook, Hinsdale, and surrounding Chicagoland communities.

US-manufactured research peptides and combination blends sold for scientific research purposes. Known for competitive pricing and domestic fulfillment.