About Molecular Peptides
US-based supplier of third-party verified, ≥98% purity lyophilized peptides for academic, biotech, and institutional research
Research demands precision. We deliver it.
We supply credentialed researchers across the United States with peptides that meet the highest standards of purity and consistency required for meaningful scientific work.
Third-Party Verified
Every batch independently tested by an accredited third-party lab for guaranteed quality
Full COA Transparency
Batch-specific certificates of analysis for every SKU
Fast & Discreet Shipping
Tracked domestic fulfillment, lyophilized for transit stability
Our Quality Standards
What we require at every step
Sourcing
Peptides sourced from GMP-compliant, vetted manufacturers
Analysis
Independent third-party analytical testing by an accredited lab — purity verified per batch
Documentation
Batch COA generated and reviewed for every product
Fulfillment
Discreet packaging with tracked domestic shipping
Why Choose Us
Quality, transparency, and reliability in every order
Premium Purity
Every product tested to ≥98% purity via third-party analytical testing
Third-Party Verified
Every batch independently tested by an accredited third-party laboratory — guaranteed purity on every order
Full Transparency
Certificate of Analysis available for every product we sell
Fast & Discreet
Secure packaging with tracked domestic shipping
Research Use Only
All products available on this website are intended exclusively for laboratory research purposes. These compounds are not for human consumption, veterinary use, or diagnostic applications. By purchasing from Molecular Peptides, you confirm that you are at least 21 years of age, are a qualified researcher, and understand the legal restrictions regarding the use of these materials.
Ready to Order?
Browse our catalog of research-grade peptides or view our Certificates of Analysis.