MyBioSource🇺🇸

MyBioSource earns a KYP Vendor Score of 87 out of 100 with a Grade A rating, placing it third in our 2026 vendor ranking. The defining characteristic of MyBioSource is catalog depth: with over 200 research peptides available, they offer one of the broadest selections in the US market, making them a valuable sourcing option for researchers who need compounds that more specialist vendors do not carry. The COA documentation program at MyBioSource covers the catalog with third-party batch certificates of analysis. HPLC purity data and mass spectrometry identity confirmation are provided with orders. The documentation quality is competent and appropriate for a broad-catalog operation, though researchers who require the highest level of analytical granularity will find that specialist vendors with dedicated quality programs provide a more rigorous documentation experience. For researchers sourcing across a wide range of compounds in a single order, MyBioSource offers a practical advantage: catalog breadth reduces the need to source from multiple vendors simultaneously. Their pricing is competitive at the mid-range, which combined with the catalog depth makes them a reasonable choice for protocol designs that require a broad set of compounds without a top-tier quality documentation requirement on every item. Sourcing strategy recommendation: use MyBioSource for compounds that specialist vendors do not carry, and use Grade A specialist vendors for your primary or most quality-critical compounds. KYP Score: 87 out of 100. Grade A.

— KnowYourPeptide Research Team